#288BA8#288BA8

#288BA8 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.098 H 222.1°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#288BA8
RGB	rgb(40, 139, 168)
HSL	hsl(194, 62%, 41%)
HSV	hsv(194, 76%, 66%)
CMYK	cmyk(76.2%, 17.3%, 0%, 34.1%)
CIE-LAB	lab(53.75, -17.99, -23.37)
CIE-LCH	lch(53.75, 29.49, 232.41°)
OKLab	oklab(59.39% -0.0725 -0.0654)
OKLCH	oklch(59.39% 0.098 222.1)
XYZ	xyz(17.1726, 21.7414, 40.3297)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BA8 #A84528

analogous

#28A885 #288BA8 #284BA8

triadic

#288BA8 #A8288B #8BA828

tetradic

#288BA8 #8528A8 #A84528 #4BA828

square

#288BA8 #8528A8 #A84528 #4BA828

split-complementary

#288BA8 #A8284B #A88528

monochromatic

#103945 #1C6277 #288BA8 #3DAFD1 #6EC3DC

Accessibility & contrast

On white

3.93

#288BA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#288BA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BA8

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BA8	#FFFFFF	#000000	##000000
##288BA8	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A88AA

Deuteranopia (green-blind)

#697BA8

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288ba8;
/* rgb */ color: rgb(40, 139, 168);
/* oklch */ color: oklch(59.4% 0.098 222.1);

Tailwind

colors: {
  custom: {
    50: '#76adc2',
    500: '#288ba8',
    950: '#000000',
  },
}

SCSS

$custom: #288ba8;
$custom-light: #76adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#288ba8",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 168
  },
  "hsl": {
    "h": 193.594,
    "s": 61.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59394,
    "c": 0.09765,
    "h": 222.1
  },
  "luminance": 0.21744
}

Semantic roles & 50–950 ramp

primary

#288BA8

secondary

#C37D69

accent

#6843E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BA8

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

Preview Lab → · Contrast checker → · Palette generator →