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blue · cool

#73bcf7

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

Token name suggestion: Meadow Harbour

RGB
115, 188, 247
HSL
207°, 89%, 71%
CMYK
53, 24, 0, 3
Luminance
0.4633

#73bcf7 is a light electric blue, 207° on the wheel and 99/100 on the cool side. Put black text on it (10.27:1). As text it scores 2.05:1 on white — use #0C78CF instead. Nearest name is Light Sky Blue, nearest Tailwind family is sky.

hsl(207 89% 71%)rgb(115 188 247)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #73bcf7 is made of, how bright it looks, and which way it leans.

Hex
#73bcf7
Hue
207°
blue
Saturation
89%
electric
Lightness
71%
light
Brightness
97%
HSV value
Perceived
70%
weighted brightness
Luminance
0.4633
WCAG relative
Temperature
Cool
99/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
10.27:1
Closest name
Light Sky Blue
ΔE2000 5.5
Chroma
36.8
LCH, 0–130ish
OKLCH L
0.771
perceptual lightness
Tailwind
sky
500 · ΔE 8.7
Web-safe
#66CCFF
nearest of 216
Where it sits
Hue207° of 360°
Saturation89%
Lightness71%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #73bcf7.

Temperature
Warm ← → Cool99% 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
Red8%
Green78%
Blue14%

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

Every format

HEX#73bcf7
HEX (8-digit)#73bcf7ff
RGBrgb(115, 188, 247)
RGBArgba(115, 188, 247, 1)
HSLhsl(207, 89%, 71%)
HSV / HSBhsv(207, 53%, 97%)
HWBhwb(207 45% 3%)
CMYKcmyk(53%, 24%, 0%, 3%)
LABlab(73.8 -6.5 -36.2)
LCHlch(73.8 36.8 259.8)
OKLCHoklch(0.771 0.112 244.4)
XYZ (D65)xyz(41.84, 46.32, 94.71)
Decimal7585015
Display P3color(display-p3 0.451 0.737 0.969)
Web-safe#66CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #73bcf7;
background-color: #73bcf7;
/* CSS custom property */
--brand: #73bcf7;
/* Tailwind (arbitrary) */
class="text-[#73bcf7] bg-[#73bcf7]"
/* SCSS */
$brand: #73bcf7;
/* SwiftUI */
Color(red: 0.451, green: 0.737, blue: 0.969)
/* UIKit */
UIColor(red: 0.451, green: 0.737, blue: 0.969, alpha: 1)
/* Android XML */
<color name="brand">#73BCF7</color>
/* Android Compose */
Color(0xFF73BCF7)
/* Flutter */
Color(0xFF73BCF7)
/* Python / OpenCV (BGR) */
(247, 188, 115)
/* Python / PIL (RGB) */
(115, 188, 247)
/* Java AWT */
new Color(115, 188, 247)
/* .NET */
Color.FromArgb(255, 115, 188, 247)
/* OpenGL / Unity (0–1) */
(0.4510f, 0.7373f, 0.9686f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{115,188,247}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #73bcf7 85%, white);
border-color: color-mix(in oklab, #73bcf7 40%, transparent);
/* theme-aware in one line */
color: light-dark(#074679, #D3E2EE);
/* relative colour syntax */
--hover: hsl(from #73bcf7 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: #F2F8FD;
  --brand-100: #E5F1FB;
  --brand-200: #C4E1F8;
  --brand-300: #95CCF9;
  --brand-400: #73bcf7;
  --brand-500: #2B99F3;
  --brand-600: #0D86E8;
  --brand-700: #0B70C1;
  --brand-800: #09599A;
  --brand-900: #0B436F;
  --brand-950: #072A46;
  --brand: #73bcf7;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0D9ED;
  --brand-hover: #51ACF5;
  --brand-pressed: #309CF3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141D24;
    --brand-ink: #D3E2EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F8FD',
        100: '#E5F1FB',
        200: '#C4E1F8',
        300: '#95CCF9',
        400: '#73bcf7',
        500: '#2B99F3',
        600: '#0D86E8',
        700: '#0B70C1',
        800: '#09599A',
        900: '#0B436F',
        950: '#072A46',
        DEFAULT: '#73bcf7',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F8FD,
  '100': #E5F1FB,
  '200': #C4E1F8,
  '300': #95CCF9,
  '400': #73bcf7,
  '500': #2B99F3,
  '600': #0D86E8,
  '700': #0B70C1,
  '800': #09599A,
  '900': #0B436F,
  '950': #072A46,
);
$brand-base: #73bcf7;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F8FD", "$type": "color" },
      "100": { "$value": "#E5F1FB", "$type": "color" },
      "200": { "$value": "#C4E1F8", "$type": "color" },
      "300": { "$value": "#95CCF9", "$type": "color" },
      "400": { "$value": "#73bcf7", "$type": "color" },
      "500": { "$value": "#2B99F3", "$type": "color" },
      "600": { "$value": "#0D86E8", "$type": "color" },
      "700": { "$value": "#0B70C1", "$type": "color" },
      "800": { "$value": "#09599A", "$type": "color" },
      "900": { "$value": "#0B436F", "$type": "color" },
      "950": { "$value": "#072A46", "$type": "color" }
    },
    "brandInk": { "$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 #73bcf7 · 10.27:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.05:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.27:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #73bcf7 as text scores 2.05:1 on white and 10.27:1 on black.
Best tinted ink on it, if plain black or white feels flat: #074679 at 4.75:1.

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
#0C78CF · 4.56:1
AA on white−28% L
#0C78CF
The quick fox
#09599A · 7.22:1
AAA on white−39% L
#09599A
The quick fox
#73bcf7 · 10.27:1
AA on blackalready passes
#73bcf7
The quick fox
#73bcf7 · 10.27:1
AAA on blackalready passes
#73bcf7

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #2B99F3 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
#73bcf7 on white: 2.05:1
AA ✗ fail · AA-large · AAA
Aa
#73bcf7 on black: 10.27:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #73bcf7 as text on that neutral, and that neutral as text on #73bcf7.

NeutralRatioBoth directions
White2.05:1AaAa
Slate 501.96:1AaAa
Slate 1001.87:1AaAa
Slate 2001.66:1AaAa
Slate 3001.38:1AaAa
Slate 4001.25:1AaAa
Slate 5002.33:1AaAa
Slate 6003.70:1AaAa
Slate 7005.06:1AaAa
Slate 8007.15:1AaAa
Slate 9008.73:1AaAa
Black10.27:1AaAa
Colour vision deficiency
true color
protanopia · #A3BDFA
deuteranopia · #91AFF6
tritanopia · #1ACAD0

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. #73bcf7 is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F8FD
#E5F1FB
#C4E1F8
#95CCF9
#73bcf7
#2B99F3
#0D86E8
#0B70C1
#09599A
#0B436F
#072A46
Base = 400Lightest = 50 · #F2F8FDDarkest = 950 · #072A46Text step on white = 700
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 0.028 244.4);
  --brand-100: oklch(0.94 0.045 244.4);
  --brand-200: oklch(0.88 0.067 244.4);
  --brand-300: oklch(0.80 0.088 244.4);
  --brand-400: oklch(0.72 0.103 244.4);
  --brand-500: oklch(0.64 0.112 244.4);
  --brand-600: oklch(0.56 0.112 244.4);
  --brand-700: oklch(0.48 0.105 244.4);
  --brand-800: oklch(0.40 0.094 244.4);
  --brand-900: oklch(0.32 0.079 244.4);
  --brand-950: oklch(0.24 0.062 244.4);
}

Colors that work with #73bcf7

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#F4F8FA
Tinted page background
Border#C0D9ED
Hairlines and dividers
Muted text#4B779B
Captions on the surface
Accent#C52C07
Second voice, not a rival
Dark variant#074679
Hover, pressed, headers
Light variant#E7F3FE
Selected rows, tints
Dark surface#141D24
Dark-mode background
Hover#51ACF5
One step down in lightness
Pressed#309CF3
Two steps down
Disabled#E9EEF1
Chroma pulled out
Focus ring#80C6FE
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 #73bcf7

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 #074679
Safe as a 1px border on white
No — use #2B99F3

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
  • Weight29/100
  • 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#F7AE73
Analogous left#73F7F0
Analogous right#737AF7
Split-complement 1#F7737A
Split-complement 2#F7F073
Triadic 1#F773BC
Triadic 2#BCF773
Tetradic#F073F7
On the wheel
Base+30°−30°+120°+240°+180°207°

#73bcf7 sits at 207°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red45.1%
Green73.7%
Blue96.9%
R · 0–255
115
0x73
G · 0–255
188
0xbc
B · 0–255
247
0xf7

CMYK percentages

Cyan53.4%
Magenta23.9%
Yellow0.0%
Key (black)3.1%

Total ink coverage is 80%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#73bcf7 text on a black background

contrast 10.27:1

Card sample

#73bcf7 text on a white background

contrast 2.05:1

Card sample

#73bcf7 on grey

1.87:1

#73bcf7 on its own surface

1.91:1

#73bcf7 on its dark surface

8.34:1

CSS3 live lab

Text font color

The quick brown fox

color: #73bcf7;
Background color
Panel with #73bcf7 background
background-color: #73bcf7;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #73bcf7;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(115, 188, 247, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(115, 188, 247, 0.45);
Border & gradient
Gradient panel
border: 3px solid #73bcf7;
background: linear-gradient(135deg, #73bcf7, #8273F7);
Gradient text

Gradient headline

background: linear-gradient(90deg, #73bcf7, #A373F7);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #73bcf7;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #73bcf7;
caret-color: #73bcf7;
Left rule
Pull quote or callout
border-left: 4px solid #73bcf7;
Ring + tint
Selected chip
background: #E7F3FE;
box-shadow: inset 0 0 0 2px #73bcf7;
Conic badge
68%
background: conic-gradient(#73bcf7 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #73bcf7 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(115, 188, 247, 0.5)
rgb(115 188 247 / 50%)
#73bcf780
hsl(207 89% 71% / 50%)
color-mix(in srgb, #73bcf7 50%, transparent)
Alpha8-digit hexFlat on white
10%#73bcf71a#F1F8FE
20%#73bcf733#E3F2FD
40%#73bcf766#C7E4FC
60%#73bcf799#ABD7FA
80%#73bcf7cc#8FC9F9

Gradients from #73bcf7

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, #ADD8FA, #73bcf7 45%, #074679);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #73bcf7, #7556F5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #73bcf7, #F7AE73);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #CAE6FC 0%, #73bcf7 45%, #074679 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F8FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #A3FAEE 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #9390F9 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #074679 0%, transparent 65%), #73bcf7;

Monochromatic scale

Palettes built from #73bcf7

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.

#73bcf7 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 10.27:1.

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.

#73bcf7, answered

What color is #73bcf7?

#73bcf7 is a light electric blue, closest to Light Sky Blue (ΔE2000 5.5). It sits at 207° on the hue wheel with 89% saturation and 71% lightness, which reads as cool.

What is the RGB value of #73bcf7?

rgb(115, 188, 247) — 115 red, 188 green and 247 blue out of 255, or 45.1% / 73.7% / 96.9% by channel.

What is #73bcf7 in HSL and HSV?

hsl(207, 89%, 71%) and hsv(207, 53%, 97%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #73bcf7 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4633 and perceived brightness is 70%, so black text on it reaches 10.27:1.

Should I use black or white text on #73bcf7?

Black. It scores 10.27:1 against #73bcf7, versus 2.05:1 for white — AAA at any size.

Is #73bcf7 accessible on a white background?

#73bcf7 on white scores 2.05:1, which fails WCAG AA at every size. Darken it to #0C78CF to reach 4.5:1, or #09599A for 7:1.

What is the complementary color of #73bcf7?

#F7AE73 sits directly opposite on the wheel. Softer options are the split-complements #F7737A and #F7F073, which give the same contrast with far less vibration.

What colors go well with #73bcf7?

For interface work: #F4F8FA as the surface, #C0D9ED for borders, #4B779B for secondary text, #C52C07 as an accent and #074679 for hover and pressed states. For a palette, the analogous pair #73F7F0 and #737AF7 stays calm, while #F7AE73 is the loudest partner.

What is #73bcf7 in CMYK for printing?

cmyk(53%, 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 #73bcf7 warm or cool?

Cool — it scores 99 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #738CF7; nudged cooler, #59A9F7.

Which Tailwind color is closest to #73bcf7?

The sky family — its 500 step is #0ea5e9, ΔE2000 8.7 away. That is a visible difference, so define #73bcf7 as a custom token rather than reaching for the built-in.

How do I use #73bcf7 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#73bcf7] or text-[#73bcf7], 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 #73bcf7 with 50% opacity?

rgba(115, 188, 247, 0.5), or #73bcf780 in eight-digit hex. Over white that composites to #B9DEFB; over black, #3A5E7C.

Is #73bcf7 a web-safe color?

No. The nearest web-safe colour is #66CCFF, ΔE2000 6.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #73bcf7 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 #73bcf7?

The safest is same-hue elevation: linear-gradient(135deg, #ADD8FA, #73bcf7 45%, #074679). For more colour, a short hue run to #7556F5 keeps it rich without turning muddy.

Work with #73bcf7 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #73bcf7 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.