#21586F#21586F

#21586F is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.5% C 0.068 H 229.0°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#21586F
RGB	rgb(33, 88, 111)
HSL	hsl(198, 54%, 28%)
HSV	hsv(198, 70%, 44%)
CMYK	cmyk(70.3%, 20.7%, 0%, 56.5%)
CIE-LAB	lab(34.90, -9.97, -18.43)
CIE-LCH	lch(34.90, 20.96, 241.58°)
OKLab	oklab(43.46% -0.0448 -0.0516)
OKLCH	oklch(43.46% 0.068 229)
XYZ	xyz(6.9850, 8.4497, 16.2987)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21586F #6F3821

analogous

#216F5F #21586F #21316F

triadic

#21586F #6F2158 #586F21

tetradic

#21586F #5F216F #6F3821 #316F21

square

#21586F #5F216F #6F3821 #316F21

split-complementary

#21586F #6F2131 #6F5F21

monochromatic

#071318 #133340 #21586F #2F7D9E #43A0C7

Accessibility & contrast

On white

7.81

#21586F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#21586F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21586F

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21586F	#FFFFFF	#000000	##FFFFFF
##21586F	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5770

Deuteranopia (green-blind)

#414F6F

Tritanopia (blue-blind)

#005E60

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21586f;
/* rgb */ color: rgb(33, 88, 111);
/* oklch */ color: oklch(43.5% 0.068 229.0);

Tailwind

colors: {
  custom: {
    50: '#678798',
    500: '#21586f',
    950: '#000000',
  },
}

SCSS

$custom: #21586f;
$custom-light: #678798;
$custom-dark: #000000;

JSON

{
  "hex": "#21586f",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 111
  },
  "hsl": {
    "h": 197.692,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.43461,
    "c": 0.06832,
    "h": 229
  },
  "luminance": 0.0845
}

Semantic roles & 50–950 ramp

primary

#21586F

secondary

#A36449

accent

#764ADE

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21586F

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

Preview Lab → · Contrast checker → · Palette generator →