#21809D#21809D

#21809D is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.0% C 0.095 H 223.4°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#21809D
RGB	rgb(33, 128, 157)
HSL	hsl(194, 65%, 37%)
HSV	hsv(194, 79%, 62%)
CMYK	cmyk(79%, 18.5%, 0%, 38.4%)
CIE-LAB	lab(49.73, -16.59, -23.21)
CIE-LCH	lch(49.73, 28.53, 234.44°)
OKLab	oklab(55.98% -0.0688 -0.065)
OKLCH	oklch(55.98% 0.095 223.4)
XYZ	xyz(14.4296, 18.1942, 34.6431)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21809D #9D3E21

analogous

#219D7C #21809D #21429D

triadic

#21809D #9D2180 #809D21

tetradic

#21809D #7C219D #9D3E21 #429D21

square

#21809D #7C219D #9D3E21 #429D21

split-complementary

#21809D #9D2142 #9D7C21

monochromatic

#0C2E38 #16576A #21809D #2CA9D0 #5CBFDD

Accessibility & contrast

On white

4.53

#21809D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#21809D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21809D

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21809D	#FFFFFF	#000000	##000000
##21809D	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7D9E

Deuteranopia (green-blind)

#5F719D

Tritanopia (blue-blind)

#008989

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #21809d;
/* rgb */ color: rgb(33, 128, 157);
/* oklch */ color: oklch(56.0% 0.095 223.4);

Tailwind

colors: {
  custom: {
    50: '#71a5ba',
    500: '#21809d',
    950: '#000000',
  },
}

SCSS

$custom: #21809d;
$custom-light: #71a5ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21809d",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 157
  },
  "hsl": {
    "h": 194.032,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.55979,
    "c": 0.09466,
    "h": 223.4
  },
  "luminance": 0.18196
}

Semantic roles & 50–950 ramp

primary

#21809D

secondary

#C17159

accent

#6740E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21809D

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

Preview Lab → · Contrast checker → · Palette generator →