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blue · cool

#9bbcf8

a light, electric blue · cool · closest name: Light Steel Blue

Token name suggestion: Morning Harbour

RGB
155, 188, 248
HSL
219°, 87%, 79%
CMYK
38, 24, 0, 3
Luminance
0.4971

#9bbcf8 is a light electric blue, 219° on the wheel and 95/100 on the cool side. Put black text on it (10.94:1). As text it scores 1.92:1 on white — use #296FF0 instead. Nearest name is Light Steel Blue, nearest Tailwind family is sky.

hsl(219 87% 79%)rgb(155 188 248)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #9bbcf8 is made of, how bright it looks, and which way it leans.

Hex
#9bbcf8
Hue
219°
blue
Saturation
87%
electric
Lightness
79%
light
Brightness
97%
HSV value
Perceived
73%
weighted brightness
Luminance
0.4971
WCAG relative
Temperature
Cool
95/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
10.94:1
Closest name
Light Steel Blue
ΔE2000 7.4
Chroma
33.4
LCH, 0–130ish
OKLCH L
0.793
perceptual lightness
Tailwind
sky
500 · ΔE 15.6
Web-safe
#99CCFF
nearest of 216
Where it sits
Hue219° of 360°
Saturation87%
Lightness79%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #9bbcf8.

Temperature
Warm ← → Cool95% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red14%
Green72%
Blue14%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#9bbcf8
HEX (8-digit)#9bbcf8ff
RGBrgb(155, 188, 248)
RGBArgba(155, 188, 248, 1)
HSLhsl(219, 87%, 79%)
HSV / HSBhsv(219, 38%, 97%)
HWBhwb(219 61% 3%)
CMYKcmyk(38%, 24%, 0%, 3%)
LABlab(75.9 3.3 -33.2)
LCHlch(75.9 33.4 275.7)
OKLCHoklch(0.793 0.093 262.1)
XYZ (D65)xyz(48.44, 49.71, 95.83)
Decimal10206456
Display P3color(display-p3 0.608 0.737 0.973)
Web-safe#99CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #9bbcf8;
background-color: #9bbcf8;
/* CSS custom property */
--brand: #9bbcf8;
/* Tailwind (arbitrary) */
class="text-[#9bbcf8] bg-[#9bbcf8]"
/* SCSS */
$brand: #9bbcf8;
/* SwiftUI */
Color(red: 0.608, green: 0.737, blue: 0.973)
/* UIKit */
UIColor(red: 0.608, green: 0.737, blue: 0.973, alpha: 1)
/* Android XML */
<color name="brand">#9BBCF8</color>
/* Android Compose */
Color(0xFF9BBCF8)
/* Flutter */
Color(0xFF9BBCF8)
/* Python / OpenCV (BGR) */
(248, 188, 155)
/* Python / PIL (RGB) */
(155, 188, 248)
/* Java AWT */
new Color(155, 188, 248)
/* .NET */
Color.FromArgb(255, 155, 188, 248)
/* OpenGL / Unity (0–1) */
(0.6078f, 0.7373f, 0.9725f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{155,188,248}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #9bbcf8 85%, white);
border-color: color-mix(in oklab, #9bbcf8 40%, transparent);
/* theme-aware in one line */
color: light-dark(#083077, #D3DCEE);
/* relative colour syntax */
--hover: hsl(from #9bbcf8 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F2F6FD;
  --brand-100: #E5EDFA;
  --brand-200: #C4D6F7;
  --brand-300: #9bbcf8;
  --brand-400: #6296F4;
  --brand-500: #2D73F0;
  --brand-600: #105CE5;
  --brand-700: #0D4CBF;
  --brand-800: #0B3D99;
  --brand-900: #0C2F6E;
  --brand-950: #081D45;
  --brand: #9bbcf8;
  --brand-ink: #000000;
  --brand-surface: #F4F6FA;
  --brand-border: #C0D0ED;
  --brand-hover: #7AA6F6;
  --brand-pressed: #588FF3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141A24;
    --brand-ink: #D3DCEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F6FD',
        100: '#E5EDFA',
        200: '#C4D6F7',
        300: '#9bbcf8',
        400: '#6296F4',
        500: '#2D73F0',
        600: '#105CE5',
        700: '#0D4CBF',
        800: '#0B3D99',
        900: '#0C2F6E',
        950: '#081D45',
        DEFAULT: '#9bbcf8',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F6FD,
  '100': #E5EDFA,
  '200': #C4D6F7,
  '300': #9bbcf8,
  '400': #6296F4,
  '500': #2D73F0,
  '600': #105CE5,
  '700': #0D4CBF,
  '800': #0B3D99,
  '900': #0C2F6E,
  '950': #081D45,
);
$brand-base: #9bbcf8;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F6FD", "$type": "color" },
      "100": { "$value": "#E5EDFA", "$type": "color" },
      "200": { "$value": "#C4D6F7", "$type": "color" },
      "300": { "$value": "#9bbcf8", "$type": "color" },
      "400": { "$value": "#6296F4", "$type": "color" },
      "500": { "$value": "#2D73F0", "$type": "color" },
      "600": { "$value": "#105CE5", "$type": "color" },
      "700": { "$value": "#0D4CBF", "$type": "color" },
      "800": { "$value": "#0B3D99", "$type": "color" },
      "900": { "$value": "#0C2F6E", "$type": "color" },
      "950": { "$value": "#081D45", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #9bbcf8 · 10.94:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.92:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.94:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #9bbcf8 as text scores 1.92:1 on white and 10.94:1 on black.
Best tinted ink on it, if plain black or white feels flat: #083077 at 6.44:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#296FF0 · 4.54:1
AA on white−24% L
#296FF0
The quick fox
#0E50C8 · 7.00:1
AAA on white−37% L
#0E50C8
The quick fox
#9bbcf8 · 10.94:1
AA on blackalready passes
#9bbcf8
The quick fox
#9bbcf8 · 10.94:1
AAA on blackalready passes
#9bbcf8

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5D92F4 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#9bbcf8 on white: 1.92:1
AA ✗ fail · AA-large · AAA
Aa
#9bbcf8 on black: 10.94:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #9bbcf8 as text on that neutral, and that neutral as text on #9bbcf8.

NeutralRatioBoth directions
White1.92:1AaAa
Slate 501.83:1AaAa
Slate 1001.75:1AaAa
Slate 2001.56:1AaAa
Slate 3001.29:1AaAa
Slate 4001.34:1AaAa
Slate 5002.48:1AaAa
Slate 6003.95:1AaAa
Slate 7005.40:1AaAa
Slate 8007.62:1AaAa
Slate 9009.30:1AaAa
Black10.94:1AaAa
Colour vision deficiency
true color
protanopia · #A7C0FB
deuteranopia · #9DB7F7
tritanopia · #7DC9D1

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #9bbcf8 is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F6FD
#E5EDFA
#C4D6F7
#9bbcf8
#6296F4
#2D73F0
#105CE5
#0D4CBF
#0B3D99
#0C2F6E
#081D45
Base = 300Lightest = 50 · #F2F6FDDarkest = 950 · #081D45Text step on white = 600
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.023 262.1);
  --brand-100: oklch(0.94 0.037 262.1);
  --brand-200: oklch(0.88 0.056 262.1);
  --brand-300: oklch(0.80 0.073 262.1);
  --brand-400: oklch(0.72 0.086 262.1);
  --brand-500: oklch(0.64 0.093 262.1);
  --brand-600: oklch(0.56 0.093 262.1);
  --brand-700: oklch(0.48 0.088 262.1);
  --brand-800: oklch(0.40 0.078 262.1);
  --brand-900: oklch(0.32 0.065 262.1);
  --brand-950: oklch(0.24 0.051 262.1);
}

Colors that work with #9bbcf8

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F6FA
Tinted page background
Border#C0D0ED
Hairlines and dividers
Muted text#4B679B
Captions on the surface
Accent#C35209
Second voice, not a rival
Dark variant#083077
Hover, pressed, headers
Light variant#E7EFFD
Selected rows, tints
Dark surface#141A24
Dark-mode background
Hover#7AA6F6
One step down in lightness
Pressed#588FF3
Two steps down
Disabled#F3F4F7
Chroma pulled out
Focus ring#AAC7FE
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #9bbcf8

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #083077
Safe as a 1px border on white
No — use #5D92F4

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The lightness keeps it airy and approachable.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight21/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#F8D79B
Analogous left#9BEAF8
Analogous right#A89BF8
Split-complement 1#F8A89B
Split-complement 2#EAF89B
Triadic 1#F89BBC
Triadic 2#BCF89B
Tetradic#F89BEA
On the wheel
Base+30°−30°+120°+240°+180°219°

#9bbcf8 sits at 219°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red60.8%
Green73.7%
Blue97.3%
R · 0–255
155
0x9b
G · 0–255
188
0xbc
B · 0–255
248
0xf8

CMYK percentages

Cyan37.5%
Magenta24.2%
Yellow0.0%
Key (black)2.7%

Total ink coverage is 64%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#9bbcf8 text on a black background

contrast 10.94:1

Card sample

#9bbcf8 text on a white background

contrast 1.92:1

Card sample

#9bbcf8 on grey

1.75:1

#9bbcf8 on its own surface

1.77:1

#9bbcf8 on its dark surface

9.10:1

CSS3 live lab

Text font color

The quick brown fox

color: #9bbcf8;
Background color
Panel with #9bbcf8 background
background-color: #9bbcf8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #9bbcf8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(155, 188, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(155, 188, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #9bbcf8;
background: linear-gradient(135deg, #9bbcf8, #B89BF8);
Gradient text

Gradient headline

background: linear-gradient(90deg, #9bbcf8, #CF9BF8);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #9bbcf8;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #9bbcf8;
caret-color: #9bbcf8;
Left rule
Pull quote or callout
border-left: 4px solid #9bbcf8;
Ring + tint
Selected chip
background: #E7EFFD;
box-shadow: inset 0 0 0 2px #9bbcf8;
Conic badge
68%
background: conic-gradient(#9bbcf8 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #9bbcf8 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(155, 188, 248, 0.5)
rgb(155 188 248 / 50%)
#9bbcf880
hsl(219 87% 79% / 50%)
color-mix(in srgb, #9bbcf8 50%, transparent)
Alpha8-digit hexFlat on white
10%#9bbcf81a#F5F8FE
20%#9bbcf833#EBF2FE
40%#9bbcf866#D7E4FC
60%#9bbcf899#C3D7FB
80%#9bbcf8cc#AFC9F9

Gradients from #9bbcf8

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #D4E2FC, #9bbcf8 45%, #083077);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #9bbcf8, #AE7EF6);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #9bbcf8, #F8D79B);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F1F5FE 0%, #9bbcf8 45%, #083077 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F6FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #CBF8FB 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C7B8FA 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #083077 0%, transparent 65%), #9bbcf8;

Monochromatic scale

Palettes built from #9bbcf8

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#9bbcf8 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 10.94:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#9bbcf8, answered

What color is #9bbcf8?

#9bbcf8 is a light electric blue, closest to Light Steel Blue (ΔE2000 7.4). It sits at 219° on the hue wheel with 87% saturation and 79% lightness, which reads as cool.

What is the RGB value of #9bbcf8?

rgb(155, 188, 248) — 155 red, 188 green and 248 blue out of 255, or 60.8% / 73.7% / 97.3% by channel.

What is #9bbcf8 in HSL and HSV?

hsl(219, 87%, 79%) and hsv(219, 38%, 97%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #9bbcf8 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4971 and perceived brightness is 73%, so black text on it reaches 10.94:1.

Should I use black or white text on #9bbcf8?

Black. It scores 10.94:1 against #9bbcf8, versus 1.92:1 for white — AAA at any size.

Is #9bbcf8 accessible on a white background?

#9bbcf8 on white scores 1.92:1, which fails WCAG AA at every size. Darken it to #296FF0 to reach 4.5:1, or #0E50C8 for 7:1.

What is the complementary color of #9bbcf8?

#F8D79B sits directly opposite on the wheel. Softer options are the split-complements #F8A89B and #EAF89B, which give the same contrast with far less vibration.

What colors go well with #9bbcf8?

For interface work: #F4F6FA as the surface, #C0D0ED for borders, #4B679B for secondary text, #C35209 as an accent and #083077 for hover and pressed states. For a palette, the analogous pair #9BEAF8 and #A89BF8 stays calm, while #F8D79B is the loudest partner.

What is #9bbcf8 in CMYK for printing?

cmyk(38%, 24%, 0%, 3%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #9bbcf8 warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #9C9BF8; nudged cooler, #82B5F8.

Which Tailwind color is closest to #9bbcf8?

The sky family — its 500 step is #0ea5e9, ΔE2000 15.6 away. That is a visible difference, so define #9bbcf8 as a custom token rather than reaching for the built-in.

How do I use #9bbcf8 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#9bbcf8] or text-[#9bbcf8], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #9bbcf8 with 50% opacity?

rgba(155, 188, 248, 0.5), or #9bbcf880 in eight-digit hex. Over white that composites to #CDDEFC; over black, #4E5E7C.

Is #9bbcf8 a web-safe color?

No. The nearest web-safe colour is #99CCFF, ΔE2000 5.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #9bbcf8 mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #9bbcf8?

The safest is same-hue elevation: linear-gradient(135deg, #D4E2FC, #9bbcf8 45%, #083077). For more colour, a short hue run to #AE7EF6 keeps it rich without turning muddy.

Work with #9bbcf8 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #9bbcf8 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.