#288FAC#288FAC

#288FAC is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.6% C 0.100 H 221.3°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#288FAC
RGB	rgb(40, 143, 172)
HSL	hsl(193, 62%, 42%)
HSV	hsv(193, 77%, 67%)
CMYK	cmyk(76.7%, 16.9%, 0%, 32.5%)
CIE-LAB	lab(55.15, -18.79, -23.52)
CIE-LCH	lch(55.15, 30.10, 231.38°)
OKLab	oklab(60.57% -0.0749 -0.0658)
OKLCH	oklch(60.57% 0.1 221.3)
XYZ	xyz(18.1408, 23.0724, 42.5191)
Luminance	0.2308 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288FAC #AC4528

analogous

#28AC87 #288FAC #284DAC

triadic

#288FAC #AC288F #8FAC28

tetradic

#288FAC #8728AC #AC4528 #4DAC28

square

#288FAC #8728AC #AC4528 #4DAC28

split-complementary

#288FAC #AC284D #AC8728

monochromatic

#113C49 #1C667A #288FAC #3FB2D2 #71C6DE

Accessibility & contrast

On white

3.74

#288FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#288FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288FAC

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288FAC	#FFFFFF	#000000	##000000
##288FAC	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAE

Deuteranopia (green-blind)

#6C7EAC

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #288fac;
/* rgb */ color: rgb(40, 143, 172);
/* oklch */ color: oklch(60.6% 0.100 221.3);

Tailwind

colors: {
  custom: {
    50: '#77b0c4',
    500: '#288fac',
    950: '#000000',
  },
}

SCSS

$custom: #288fac;
$custom-light: #77b0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#288fac",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 172
  },
  "hsl": {
    "h": 193.182,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.60567,
    "c": 0.09972,
    "h": 221.3
  },
  "luminance": 0.23075
}

Semantic roles & 50–950 ramp

primary

#288FAC

secondary

#C57F6B

accent

#6642E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288FAC

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

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