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cyan · cool

#088dbb

a dark, electric cyan · cool · closest name: Steel Blue

Token name suggestion: Slate Glacier

RGB
8, 141, 187
HSL
195°, 92%, 38%
CMYK
96, 25, 0, 27
Luminance
0.2269

#088dbb is a dark electric cyan, 195° on the wheel and 94/100 on the cool side. Put black text on it (5.54:1). As text it scores 3.79:1 on white — large text only. Nearest name is Steel Blue, nearest Tailwind family is sky.

hsl(195 92% 38%)rgb(8 141 187)Base step 700AA inkCool

At a glance

Every number on this page in one read: what #088dbb is made of, how bright it looks, and which way it leans.

Hex
#088dbb
Hue
195°
cyan
Saturation
92%
electric
Lightness
38%
dark
Brightness
73%
HSV value
Perceived
49%
weighted brightness
Luminance
0.2269
WCAG relative
Temperature
Cool
94/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
5.54:1
Closest name
Steel Blue
ΔE2000 7.4
Chroma
35.9
LCH, 0–130ish
OKLCH L
0.603
perceptual lightness
Tailwind
sky
500 · ΔE 9.2
Web-safe
#0099CC
nearest of 216
Where it sits
Hue195° of 360°
Saturation92%
Lightness38%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #088dbb.

Temperature
Warm ← → Cool94% 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
Red0%
Green84%
Blue16%

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

Every format

HEX#088dbb
HEX (8-digit)#088dbbff
RGBrgb(8, 141, 187)
RGBArgba(8, 141, 187, 1)
HSLhsl(195, 92%, 38%)
HSV / HSBhsv(195, 96%, 73%)
HWBhwb(195 3% 27%)
CMYKcmyk(96%, 25%, 0%, 27%)
LABlab(54.8 -14.7 -32.7)
LCHlch(54.8 35.9 245.8)
OKLCHoklch(0.603 0.120 230.6)
XYZ (D65)xyz(18.59, 22.69, 50.40)
Decimal560571
Display P3color(display-p3 0.031 0.553 0.733)
Web-safe#0099CC

Copy-ready code

every platformclick to select
/* CSS */
color: #088dbb;
background-color: #088dbb;
/* CSS custom property */
--brand: #088dbb;
/* Tailwind (arbitrary) */
class="text-[#088dbb] bg-[#088dbb]"
/* SCSS */
$brand: #088dbb;
/* SwiftUI */
Color(red: 0.031, green: 0.553, blue: 0.733)
/* UIKit */
UIColor(red: 0.031, green: 0.553, blue: 0.733, alpha: 1)
/* Android XML */
<color name="brand">#088DBB</color>
/* Android Compose */
Color(0xFF088DBB)
/* Flutter */
Color(0xFF088DBB)
/* Python / OpenCV (BGR) */
(187, 141, 8)
/* Python / PIL (RGB) */
(8, 141, 187)
/* Java AWT */
new Color(8, 141, 187)
/* .NET */
Color.FromArgb(255, 8, 141, 187)
/* OpenGL / Unity (0–1) */
(0.0314f, 0.5529f, 0.7333f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{8,141,187}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #088dbb 85%, white);
border-color: color-mix(in oklab, #088dbb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#055C7A, #D3E7EE);
/* relative colour syntax */
--hover: hsl(from #088dbb 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: #F2FAFD;
  --brand-100: #E4F5FB;
  --brand-200: #C3EBF9;
  --brand-300: #93E0FA;
  --brand-400: #5ED0F8;
  --brand-500: #28C1F6;
  --brand-600: #0AB1EB;
  --brand-700: #088dbb;
  --brand-800: #07769D;
  --brand-900: #0A5671;
  --brand-950: #063647;
  --brand: #088dbb;
  --brand-ink: #000000;
  --brand-surface: #F4F9FA;
  --brand-border: #C0E1ED;
  --brand-hover: #077399;
  --brand-pressed: #055976;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142024;
    --brand-ink: #D3E7EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2FAFD',
        100: '#E4F5FB',
        200: '#C3EBF9',
        300: '#93E0FA',
        400: '#5ED0F8',
        500: '#28C1F6',
        600: '#0AB1EB',
        700: '#088dbb',
        800: '#07769D',
        900: '#0A5671',
        950: '#063647',
        DEFAULT: '#088dbb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2FAFD,
  '100': #E4F5FB,
  '200': #C3EBF9,
  '300': #93E0FA,
  '400': #5ED0F8,
  '500': #28C1F6,
  '600': #0AB1EB,
  '700': #088dbb,
  '800': #07769D,
  '900': #0A5671,
  '950': #063647,
);
$brand-base: #088dbb;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2FAFD", "$type": "color" },
      "100": { "$value": "#E4F5FB", "$type": "color" },
      "200": { "$value": "#C3EBF9", "$type": "color" },
      "300": { "$value": "#93E0FA", "$type": "color" },
      "400": { "$value": "#5ED0F8", "$type": "color" },
      "500": { "$value": "#28C1F6", "$type": "color" },
      "600": { "$value": "#0AB1EB", "$type": "color" },
      "700": { "$value": "#088dbb", "$type": "color" },
      "800": { "$value": "#07769D", "$type": "color" },
      "900": { "$value": "#0A5671", "$type": "color" },
      "950": { "$value": "#063647", "$type": "color" }
    },
    "brandInk": { "$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 #088dbb · 5.54:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 3.79:1
AA fail · AA large pass · AAA fail
Aa
Black text · 5.54:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #088dbb as text scores 3.79:1 on white and 5.54:1 on black.
Best tinted ink on it, if plain black or white feels flat: #055C7A at 1.96:1.

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
#077EA7 · 4.61:1
AA on white−4% L
#077EA7
The quick fox
#055D7B · 7.35:1
AAA on white−13% L
#055D7B
The quick fox
#088dbb · 5.54:1
AA on blackalready passes
#088dbb
The quick fox
#09A3D8 · 7.24:1
AAA on black+6% L
#09A3D8

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #088DBB 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
#088dbb on white: 3.79:1
AA ✗ fail · AA-large · AAA
Aa
#088dbb on black: 5.54:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #088dbb as text on that neutral, and that neutral as text on #088dbb.

NeutralRatioBoth directions
White3.79:1AaAa
Slate 503.62:1AaAa
Slate 1003.46:1AaAa
Slate 2003.08:1AaAa
Slate 3002.55:1AaAa
Slate 4001.48:1AaAa
Slate 5001.25:1AaAa
Slate 6002.00:1AaAa
Slate 7002.73:1AaAa
Slate 8003.86:1AaAa
Slate 9004.71:1AaAa
Black5.54:1AaAa
Colour vision deficiency
true color
protanopia · #758BBD
deuteranopia · #607DBA
tritanopia · #009A9D

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. #088dbb is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2FAFD
#E4F5FB
#C3EBF9
#93E0FA
#5ED0F8
#28C1F6
#0AB1EB
#088dbb
#07769D
#0A5671
#063647
Base = 700Lightest = 50 · #F2FAFDDarkest = 950 · #063647Text step on white = 800
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 0.030 230.6);
  --brand-100: oklch(0.94 0.048 230.6);
  --brand-200: oklch(0.88 0.072 230.6);
  --brand-300: oklch(0.80 0.093 230.6);
  --brand-400: oklch(0.72 0.110 230.6);
  --brand-500: oklch(0.64 0.120 230.6);
  --brand-600: oklch(0.56 0.120 230.6);
  --brand-700: oklch(0.48 0.112 230.6);
  --brand-800: oklch(0.40 0.100 230.6);
  --brand-900: oklch(0.32 0.084 230.6);
  --brand-950: oklch(0.24 0.066 230.6);
}

Colors that work with #088dbb

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#F4F9FA
Tinted page background
Border#C0E1ED
Hairlines and dividers
Muted text#4B869B
Captions on the surface
Accent#BF0504
Second voice, not a rival
Dark variant#055C7A
Hover, pressed, headers
Light variant#E7F8FE
Selected rows, tints
Dark surface#142024
Dark-mode background
Hover#077399
One step down in lightness
Pressed#055976
Two steps down
Disabled#83A4B0
Chroma pulled out
Focus ring#00A0D7
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 #088dbb

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

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #055C7A
Safe as a 1px border on white
Yes

Meaning and mood

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

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The low lightness adds weight and formality.

Worth knowing

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight62/100
  • 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#BB3608
Analogous left#08BB8F
Analogous right#0834BB
Split-complement 1#BB0834
Split-complement 2#BB8F08
Triadic 1#BB088D
Triadic 2#8DBB08
Tetradic#8F08BB
On the wheel
Base+30°−30°+120°+240°+180°195°

#088dbb sits at 195°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red3.1%
Green55.3%
Blue73.3%
R · 0–255
8
0x08
G · 0–255
141
0x8d
B · 0–255
187
0xbb

CMYK percentages

Cyan95.7%
Magenta24.6%
Yellow0.0%
Key (black)26.7%

Total ink coverage is 147%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#088dbb text on a black background

contrast 5.54:1

Card sample

#088dbb text on a white background

contrast 3.79:1

Card sample

#088dbb on grey

3.46:1

#088dbb on its own surface

3.57:1

#088dbb on its dark surface

4.39:1

CSS3 live lab

Text font color

The quick brown fox

color: #088dbb;
Background color
Panel with #088dbb background
background-color: #088dbb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #088dbb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(8, 141, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(8, 141, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #088dbb;
background: linear-gradient(135deg, #088dbb, #0816BB);
Gradient text

Gradient headline

background: linear-gradient(90deg, #088dbb, #2708BB);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #088dbb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #088dbb;
caret-color: #088dbb;
Left rule
Pull quote or callout
border-left: 4px solid #088dbb;
Ring + tint
Selected chip
background: #E7F8FE;
box-shadow: inset 0 0 0 2px #088dbb;
Conic badge
68%
background: conic-gradient(#088dbb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #088dbb 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(8, 141, 187, 0.5)
rgb(8 141 187 / 50%)
#088dbb80
hsl(195 92% 38% / 50%)
color-mix(in srgb, #088dbb 50%, transparent)
Alpha8-digit hexFlat on white
10%#088dbb1a#E6F4F8
20%#088dbb33#CEE8F1
40%#088dbb66#9CD1E4
60%#088dbb99#6BBBD6
80%#088dbbcc#39A4C9

Gradients from #088dbb

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, #0BB9F5, #088dbb 45%, #055C7A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #088dbb, #08079D);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #088dbb, #BB3608);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #29C1F6 0%, #088dbb 45%, #055C7A 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F9FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #0AECA2 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #092AD8 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #055C7A 0%, transparent 65%), #088dbb;

Monochromatic scale

Palettes built from #088dbb

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.

#088dbb in the real world

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

Industries
TechnologyTravelHealthcareMedia
Common UI roles
ButtonsLinksFocus statesCharts
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 5.54:1.

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.

#088dbb, answered

What color is #088dbb?

#088dbb is a dark electric cyan, closest to Steel Blue (ΔE2000 7.4). It sits at 195° on the hue wheel with 92% saturation and 38% lightness, which reads as cool.

What is the RGB value of #088dbb?

rgb(8, 141, 187) — 8 red, 141 green and 187 blue out of 255, or 3.1% / 55.3% / 73.3% by channel.

What is #088dbb in HSL and HSV?

hsl(195, 92%, 38%) and hsv(195, 96%, 73%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #088dbb a light or a dark color?

It is a mid-tone. Relative luminance is 0.2269 and perceived brightness is 49%, so black text on it reaches 5.54:1.

Should I use black or white text on #088dbb?

Black. It scores 5.54:1 against #088dbb, versus 3.79:1 for white — AA at any size.

Is #088dbb accessible on a white background?

#088dbb on white scores 3.79:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #077EA7 to reach 4.5:1, or #055D7B for 7:1.

What is the complementary color of #088dbb?

#BB3608 sits directly opposite on the wheel. Softer options are the split-complements #BB0834 and #BB8F08, which give the same contrast with far less vibration.

What colors go well with #088dbb?

For interface work: #F4F9FA as the surface, #C0E1ED for borders, #4B869B for secondary text, #BF0504 as an accent and #055C7A for hover and pressed states. For a palette, the analogous pair #08BB8F and #0834BB stays calm, while #BB3608 is the loudest partner.

What is #088dbb in CMYK for printing?

cmyk(96%, 25%, 0%, 27%). 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 #088dbb warm or cool?

Cool — it scores 94 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #08BBA7; nudged cooler, #0674BD.

Which Tailwind color is closest to #088dbb?

The sky family — its 500 step is #0ea5e9, ΔE2000 9.2 away. That is a visible difference, so define #088dbb as a custom token rather than reaching for the built-in.

How do I use #088dbb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#088dbb] or text-[#088dbb], 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 #088dbb with 50% opacity?

rgba(8, 141, 187, 0.5), or #088dbb80 in eight-digit hex. Over white that composites to #84C6DD; over black, #04475E.

Is #088dbb a web-safe color?

No. The nearest web-safe colour is #0099CC, ΔE2000 4.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #088dbb mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #088dbb?

The safest is same-hue elevation: linear-gradient(135deg, #0BB9F5, #088dbb 45%, #055C7A). For more colour, a short hue run to #08079D keeps it rich without turning muddy.

Work with #088dbb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #088dbb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.