#21819F#21819F

#21819F is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.3% C 0.096 H 224.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#21819F
RGB	rgb(33, 129, 159)
HSL	hsl(194, 66%, 38%)
HSV	hsv(194, 79%, 62%)
CMYK	cmyk(79.2%, 18.9%, 0%, 37.6%)
CIE-LAB	lab(50.13, -16.44, -23.76)
CIE-LCH	lch(50.13, 28.90, 235.32°)
OKLab	oklab(56.32% -0.069 -0.0666)
OKLCH	oklch(56.32% 0.096 224)
XYZ	xyz(14.7329, 18.5252, 35.5934)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21819F #9F3F21

analogous

#219F7E #21819F #21429F

triadic

#21819F #9F2181 #819F21

tetradic

#21819F #7E219F #9F3F21 #429F21

square

#21819F #7E219F #9F3F21 #429F21

split-complementary

#21819F #9F2142 #9F7E21

monochromatic

#0C2F3A #16586C #21819F #2CAAD2 #5DBFDD

Accessibility & contrast

On white

4.46

#21819F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#21819F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21819F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21819F	#FFFFFF	#000000	##000000
##21819F	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707EA1

Deuteranopia (green-blind)

#5F729F

Tritanopia (blue-blind)

#008A8B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #21819f;
/* rgb */ color: rgb(33, 129, 159);
/* oklch */ color: oklch(56.3% 0.096 224.0);

Tailwind

colors: {
  custom: {
    50: '#71a5bb',
    500: '#21819f',
    950: '#000000',
  },
}

SCSS

$custom: #21819f;
$custom-light: #71a5bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21819f",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 159
  },
  "hsl": {
    "h": 194.286,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.56324,
    "c": 0.09591,
    "h": 224
  },
  "luminance": 0.18527
}

Semantic roles & 50–950 ramp

primary

#21819F

secondary

#C2735A

accent

#683FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #21819F

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

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