#21809A#21809A

#21809A is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 55.8% C 0.093 H 220.9°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#21809A
RGB	rgb(33, 128, 154)
HSL	hsl(193, 65%, 37%)
HSV	hsv(193, 79%, 60%)
CMYK	cmyk(78.6%, 16.9%, 0%, 39.6%)
CIE-LAB	lab(49.61, -17.63, -21.64)
CIE-LCH	lch(49.61, 27.92, 230.83°)
OKLab	oklab(55.84% -0.07 -0.0606)
OKLCH	oklch(55.84% 0.093 220.9)
XYZ	xyz(14.1767, 18.0930, 33.3107)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21809A #9A3B21

analogous

#219A78 #21809A #21439A

triadic

#21809A #9A2180 #809A21

tetradic

#21809A #78219A #9A3B21 #439A21

square

#21809A #78219A #9A3B21 #439A21

split-complementary

#21809A #9A2143 #9A7821

monochromatic

#0B2C35 #165668 #21809A #2CAACC #5AC0DC

Accessibility & contrast

On white

4.55

#21809A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#21809A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21809A

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21809A	#FFFFFF	#000000	##000000
##21809A	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9B

Deuteranopia (green-blind)

#60719A

Tritanopia (blue-blind)

#008888

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #21809a;
/* rgb */ color: rgb(33, 128, 154);
/* oklch */ color: oklch(55.8% 0.093 220.9);

Tailwind

colors: {
  custom: {
    50: '#71a5b7',
    500: '#21809a',
    950: '#000000',
  },
}

SCSS

$custom: #21809a;
$custom-light: #71a5b7;
$custom-dark: #000000;

JSON

{
  "hex": "#21809a",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 154
  },
  "hsl": {
    "h": 192.893,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.55841,
    "c": 0.09256,
    "h": 220.9
  },
  "luminance": 0.18095
}

Semantic roles & 50–950 ramp

primary

#21809A

secondary

#C06E57

accent

#6440E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21809A

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

Preview Lab → · Contrast checker → · Palette generator →