#288CA2#288CA2

#288CA2 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.4% C 0.094 H 216.0°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#288CA2
RGB	rgb(40, 140, 162)
HSL	hsl(191, 60%, 40%)
HSV	hsv(191, 75%, 64%)
CMYK	cmyk(75.3%, 13.6%, 0%, 36.5%)
CIE-LAB	lab(53.83, -20.54, -19.80)
CIE-LCH	lch(53.83, 28.53, 223.95°)
OKLab	oklab(59.38% -0.0759 -0.0552)
OKLCH	oklch(59.38% 0.094 216)
XYZ	xyz(16.7720, 21.8139, 37.5020)
Luminance	0.2182 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288CA2 #A23E28

analogous

#28A27B #288CA2 #284FA2

triadic

#288CA2 #A2288C #8CA228

tetradic

#288CA2 #7B28A2 #A23E28 #4FA228

square

#288CA2 #7B28A2 #A23E28 #4FA228

split-complementary

#288CA2 #A2284F #A27B28

monochromatic

#103740 #1C6271 #288CA2 #39B3CE #6AC6DA

Accessibility & contrast

On white

3.92

#288CA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#288CA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288CA2

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288CA2	#FFFFFF	#000000	##000000
##288CA2	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D88A3

Deuteranopia (green-blind)

#6C7BA2

Tritanopia (blue-blind)

#009493

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288ca2;
/* rgb */ color: rgb(40, 140, 162);
/* oklch */ color: oklch(59.4% 0.094 216.0);

Tailwind

colors: {
  custom: {
    50: '#75adbd',
    500: '#288ca2',
    950: '#000000',
  },
}

SCSS

$custom: #288ca2;
$custom-light: #75adbd;
$custom-dark: #000000;

JSON

{
  "hex": "#288ca2",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 162
  },
  "hsl": {
    "h": 190.82,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.59379,
    "c": 0.09391,
    "h": 216
  },
  "luminance": 0.21816
}

Semantic roles & 50–950 ramp

primary

#288CA2

secondary

#C17665

accent

#6144E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288CA2

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

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