#288BA7#288BA7

#288BA7 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.3% C 0.097 H 221.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#288BA7
RGB	rgb(40, 139, 167)
HSL	hsl(193, 61%, 41%)
HSV	hsv(193, 76%, 65%)
CMYK	cmyk(76%, 16.8%, 0%, 34.5%)
CIE-LAB	lab(53.71, -18.33, -22.86)
CIE-LCH	lch(53.71, 29.30, 231.27°)
OKLab	oklab(59.35% -0.0729 -0.0639)
OKLCH	oklch(59.35% 0.097 221.2)
XYZ	xyz(17.0798, 21.7043, 39.8409)
Luminance	0.2171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BA7 #A74428

analogous

#28A783 #288BA7 #284CA7

triadic

#288BA7 #A7288B #8BA728

tetradic

#288BA7 #8328A7 #A74428 #4CA728

square

#288BA7 #8328A7 #A74428 #4CA728

split-complementary

#288BA7 #A7284C #A78328

monochromatic

#103944 #1C6276 #288BA7 #3CB0D0 #6DC4DC

Accessibility & contrast

On white

3.93

#288BA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#288BA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BA7

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BA7	#FFFFFF	#000000	##000000
##288BA7	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A87A8

Deuteranopia (green-blind)

#697BA7

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288ba7;
/* rgb */ color: rgb(40, 139, 167);
/* oklch */ color: oklch(59.3% 0.097 221.2);

Tailwind

colors: {
  custom: {
    50: '#76adc1',
    500: '#288ba7',
    950: '#000000',
  },
}

SCSS

$custom: #288ba7;
$custom-light: #76adc1;
$custom-dark: #000000;

JSON

{
  "hex": "#288ba7",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 167
  },
  "hsl": {
    "h": 193.228,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59349,
    "c": 0.09698,
    "h": 221.2
  },
  "luminance": 0.21706
}

Semantic roles & 50–950 ramp

primary

#288BA7

secondary

#C37C68

accent

#6743E4

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BA7

Body copy rendered with the generated semantic roles for this colour.

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