#288DA2#288DA2

#288DA2 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.6% C 0.094 H 215.0°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#288DA2
RGB	rgb(40, 141, 162)
HSL	hsl(190, 60%, 40%)
HSV	hsv(190, 75%, 64%)
CMYK	cmyk(75.3%, 13%, 0%, 36.5%)
CIE-LAB	lab(54.14, -21.07, -19.32)
CIE-LCH	lch(54.14, 28.59, 222.53°)
OKLab	oklab(59.63% -0.077 -0.0539)
OKLCH	oklch(59.63% 0.094 215)
XYZ	xyz(16.9188, 22.1075, 37.5509)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DA2 #A23D28

analogous

#28A27A #288DA2 #2850A2

triadic

#288DA2 #A2288D #8DA228

tetradic

#288DA2 #7A28A2 #A23D28 #50A228

square

#288DA2 #7A28A2 #A23D28 #50A228

split-complementary

#288DA2 #A22850 #A27A28

monochromatic

#103840 #1C6271 #288DA2 #39B4CE #6AC7DA

Accessibility & contrast

On white

3.87

#288DA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#288DA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DA2

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DA2	#FFFFFF	#000000	##000000
##288DA2	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E88A3

Deuteranopia (green-blind)

#6E7CA2

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288da2;
/* rgb */ color: rgb(40, 141, 162);
/* oklch */ color: oklch(59.6% 0.094 215.0);

Tailwind

colors: {
  custom: {
    50: '#75aebd',
    500: '#288da2',
    950: '#000000',
  },
}

SCSS

$custom: #288da2;
$custom-light: #75aebd;
$custom-dark: #000000;

JSON

{
  "hex": "#288da2",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 162
  },
  "hsl": {
    "h": 190.328,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.5963,
    "c": 0.09395,
    "h": 215
  },
  "luminance": 0.2211
}

Semantic roles & 50–950 ramp

primary

#288DA2

secondary

#C17565

accent

#6044E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288DA2

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

Preview Lab → · Contrast checker → · Palette generator →