#288AA1#288AA1

#288AA1 is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 58.8% C 0.093 H 217.2°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#288AA1
RGB	rgb(40, 138, 161)
HSL	hsl(191, 60%, 39%)
HSV	hsv(191, 75%, 63%)
CMYK	cmyk(75.2%, 14.3%, 0%, 36.9%)
CIE-LAB	lab(53.17, -19.81, -20.24)
CIE-LCH	lch(53.17, 28.32, 225.61°)
OKLab	oklab(58.83% -0.0743 -0.0565)
OKLCH	oklch(58.83% 0.093 217.2)
XYZ	xyz(16.3939, 21.1993, 36.9392)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288AA1 #A13F28

analogous

#28A17C #288AA1 #284EA1

triadic

#288AA1 #A1288A #8AA128

tetradic

#288AA1 #7C28A1 #A13F28 #4EA128

square

#288AA1 #7C28A1 #A13F28 #4EA128

split-complementary

#288AA1 #A1284E #A17C28

monochromatic

#10363F #1C6070 #288AA1 #39B1CE #6AC5DA

Accessibility & contrast

On white

4.01

#288AA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#288AA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288AA1

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288AA1	#FFFFFF	#000000	##000000
##288AA1	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B86A2

Deuteranopia (green-blind)

#6A7AA1

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288aa1;
/* rgb */ color: rgb(40, 138, 161);
/* oklch */ color: oklch(58.8% 0.093 217.2);

Tailwind

colors: {
  custom: {
    50: '#75acbc',
    500: '#288aa1',
    950: '#000000',
  },
}

SCSS

$custom: #288aa1;
$custom-light: #75acbc;
$custom-dark: #000000;

JSON

{
  "hex": "#288aa1",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 161
  },
  "hsl": {
    "h": 191.405,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.58834,
    "c": 0.09335,
    "h": 217.2
  },
  "luminance": 0.21201
}

Semantic roles & 50–950 ramp

primary

#288AA1

secondary

#C07665

accent

#6344E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288AA1

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

Preview Lab → · Contrast checker → · Palette generator →