#21587A#21587A

#21587A is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.080 H 239.5°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#21587A
RGB	rgb(33, 88, 122)
HSL	hsl(203, 57%, 30%)
HSV	hsv(203, 73%, 48%)
CMYK	cmyk(73%, 27.9%, 0%, 52.2%)
CIE-LAB	lab(35.41, -5.94, -24.45)
CIE-LCH	lch(35.41, 25.16, 256.35°)
OKLab	oklab(44.04% -0.0406 -0.0689)
OKLCH	oklch(44.04% 0.08 239.5)
XYZ	xyz(7.6284, 8.7071, 19.6872)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21587A #7A4321

analogous

#217A6F #21587A #212C7A

triadic

#21587A #7A2158 #587A21

tetradic

#21587A #6F217A #7A4321 #2C7A21

square

#21587A #6F217A #7A4321 #2C7A21

split-complementary

#21587A #7A212C #7A6F21

monochromatic

#07131A #14354A #21587A #2E7BAA #489ACD

Accessibility & contrast

On white

7.66

#21587A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#21587A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21587A

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21587A	#FFFFFF	#000000	##FFFFFF
##21587A	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48587C

Deuteranopia (green-blind)

#3C4F79

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #21587a;
/* rgb */ color: rgb(33, 88, 122);
/* oklch */ color: oklch(44.0% 0.080 239.5);

Tailwind

colors: {
  custom: {
    50: '#6887a0',
    500: '#21587a',
    950: '#000000',
  },
}

SCSS

$custom: #21587a;
$custom-light: #6887a0;
$custom-dark: #000000;

JSON

{
  "hex": "#21587a",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 122
  },
  "hsl": {
    "h": 202.921,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.44037,
    "c": 0.07999,
    "h": 239.5
  },
  "luminance": 0.08708
}

Semantic roles & 50–950 ramp

primary

#21587A

secondary

#AD704A

accent

#8247E1

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #21587A

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

Preview Lab → · Contrast checker → · Palette generator →