#21556F#21556F

#21556F is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.7% C 0.070 H 233.5°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#21556F
RGB	rgb(33, 85, 111)
HSL	hsl(200, 54%, 28%)
HSV	hsv(200, 70%, 44%)
CMYK	cmyk(70.3%, 23.4%, 0%, 56.5%)
CIE-LAB	lab(33.91, -8.15, -19.96)
CIE-LCH	lch(33.91, 21.56, 247.77°)
OKLab	oklab(42.67% -0.0414 -0.056)
OKLCH	oklch(42.67% 0.07 233.5)
XYZ	xyz(6.7438, 7.9673, 16.2183)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21556F #6F3B21

analogous

#216F62 #21556F #212E6F

triadic

#21556F #6F2155 #556F21

tetradic

#21556F #62216F #6F3B21 #2E6F21

square

#21556F #62216F #6F3B21 #2E6F21

split-complementary

#21556F #6F212E #6F6221

monochromatic

#071218 #133140 #21556F #2F799E #439BC7

Accessibility & contrast

On white

8.10

#21556F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#21556F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21556F

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21556F	#FFFFFF	#000000	##FFFFFF
##21556F	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485470

Deuteranopia (green-blind)

#3E4C6F

Tritanopia (blue-blind)

#005C5E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #21556f;
/* rgb */ color: rgb(33, 85, 111);
/* oklch */ color: oklch(42.7% 0.070 233.5);

Tailwind

colors: {
  custom: {
    50: '#668498',
    500: '#21556f',
    950: '#000000',
  },
}

SCSS

$custom: #21556f;
$custom-light: #668498;
$custom-dark: #000000;

JSON

{
  "hex": "#21556f",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 111
  },
  "hsl": {
    "h": 200,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.42674,
    "c": 0.06961,
    "h": 233.5
  },
  "luminance": 0.07968
}

Semantic roles & 50–950 ramp

primary

#21556F

secondary

#A36749

accent

#7B4ADE

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21556F

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

Preview Lab → · Contrast checker → · Palette generator →