#21586E#21586E

#21586E is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.4% C 0.067 H 227.9°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#21586E
RGB	rgb(33, 88, 110)
HSL	hsl(197, 54%, 28%)
HSV	hsv(197, 70%, 43%)
CMYK	cmyk(70%, 20%, 0%, 56.9%)
CIE-LAB	lab(34.86, -10.33, -17.88)
CIE-LCH	lch(34.86, 20.65, 239.97°)
OKLab	oklab(43.41% -0.0452 -0.05)
OKLCH	oklch(43.41% 0.067 227.9)
XYZ	xyz(6.9303, 8.4278, 16.0103)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21586E #6E3721

analogous

#216E5D #21586E #21316E

triadic

#21586E #6E2158 #586E21

tetradic

#21586E #5D216E #6E3721 #316E21

square

#21586E #5D216E #6E3721 #316E21

split-complementary

#21586E #6E2131 #6E5D21

monochromatic

#071318 #13323F #21586E #2F7E9D #43A1C7

Accessibility & contrast

On white

7.82

#21586E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#21586E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21586E

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21586E	#FFFFFF	#000000	##FFFFFF
##21586E	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C566F

Deuteranopia (green-blind)

#424F6E

Tritanopia (blue-blind)

#005E5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21586e;
/* rgb */ color: rgb(33, 88, 110);
/* oklch */ color: oklch(43.4% 0.067 227.9);

Tailwind

colors: {
  custom: {
    50: '#668797',
    500: '#21586e',
    950: '#000000',
  },
}

SCSS

$custom: #21586e;
$custom-light: #668797;
$custom-dark: #000000;

JSON

{
  "hex": "#21586e",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 110
  },
  "hsl": {
    "h": 197.143,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.43411,
    "c": 0.06741,
    "h": 227.9
  },
  "luminance": 0.08429
}

Semantic roles & 50–950 ramp

primary

#21586E

secondary

#A26249

accent

#744BDD

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21586E

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

Preview Lab → · Contrast checker → · Palette generator →