#288BAC#288BAC

#288BAC is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.6% C 0.101 H 225.1°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#288BAC
RGB	rgb(40, 139, 172)
HSL	hsl(195, 62%, 42%)
HSV	hsv(195, 77%, 67%)
CMYK	cmyk(76.7%, 19.2%, 0%, 32.5%)
CIE-LAB	lab(53.91, -16.63, -25.42)
CIE-LCH	lch(53.91, 30.37, 236.81°)
OKLab	oklab(59.58% -0.0709 -0.0713)
OKLCH	oklch(59.58% 0.101 225.1)
XYZ	xyz(17.5510, 21.8928, 42.3225)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BAC #AC4928

analogous

#28AC8B #288BAC #2849AC

triadic

#288BAC #AC288B #8BAC28

tetradic

#288BAC #8B28AC #AC4928 #49AC28

square

#288BAC #8B28AC #AC4928 #49AC28

split-complementary

#288BAC #AC2849 #AC8B28

monochromatic

#113B49 #1C637A #288BAC #3FADD2 #71C3DE

Accessibility & contrast

On white

3.90

#288BAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#288BAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BAC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BAC	#FFFFFF	#000000	##000000
##288BAC	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7988AE

Deuteranopia (green-blind)

#677BAC

Tritanopia (blue-blind)

#009596

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288bac;
/* rgb */ color: rgb(40, 139, 172);
/* oklch */ color: oklch(59.6% 0.101 225.1);

Tailwind

colors: {
  custom: {
    50: '#76adc4',
    500: '#288bac',
    950: '#000000',
  },
}

SCSS

$custom: #288bac;
$custom-light: #76adc4;
$custom-dark: #000000;

JSON

{
  "hex": "#288bac",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 172
  },
  "hsl": {
    "h": 195,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.59577,
    "c": 0.10056,
    "h": 225.1
  },
  "luminance": 0.21895
}

Semantic roles & 50–950 ramp

primary

#288BAC

secondary

#C5816B

accent

#6B42E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BAC

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

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