#288599#288599

#288599 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.2% C 0.089 H 215.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#288599
RGB	rgb(40, 133, 153)
HSL	hsl(191, 59%, 38%)
HSV	hsv(191, 74%, 60%)
CMYK	cmyk(73.9%, 13.1%, 0%, 40%)
CIE-LAB	lab(51.30, -19.80, -18.46)
CIE-LCH	lch(51.30, 27.08, 222.99°)
OKLab	oklab(57.23% -0.0725 -0.0515)
OKLCH	oklch(57.23% 0.089 215.4)
XYZ	xyz(15.0099, 19.5243, 33.1083)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288599 #993C28

analogous

#289974 #288599 #284D99

triadic

#288599 #992885 #859928

tetradic

#288599 #742899 #993C28 #4D9928

square

#288599 #742899 #993C28 #4D9928

split-complementary

#288599 #99284D #997428

monochromatic

#0F3138 #1B5B68 #288599 #35AFCA #65C3D7

Accessibility & contrast

On white

4.28

#288599 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#288599 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288599

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288599	#FFFFFF	#000000	##000000
##288599	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77819A

Deuteranopia (green-blind)

#687599

Tritanopia (blue-blind)

#008C8B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288599;
/* rgb */ color: rgb(40, 133, 153);
/* oklch */ color: oklch(57.2% 0.089 215.4);

Tailwind

colors: {
  custom: {
    50: '#73a8b7',
    500: '#288599',
    950: '#000000',
  },
}

SCSS

$custom: #288599;
$custom-light: #73a8b7;
$custom-dark: #000000;

JSON

{
  "hex": "#288599",
  "rgb": {
    "r": 40,
    "g": 133,
    "b": 153
  },
  "hsl": {
    "h": 190.619,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.57227,
    "c": 0.08891,
    "h": 215.4
  },
  "luminance": 0.19526
}

Semantic roles & 50–950 ramp

primary

#288599

secondary

#BD7160

accent

#6246E2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #288599

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

Preview Lab → · Contrast checker → · Palette generator →