#21819D#21819D

#21819D is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.2% C 0.094 H 222.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#21819D
RGB	rgb(33, 129, 157)
HSL	hsl(194, 65%, 37%)
HSV	hsv(194, 79%, 62%)
CMYK	cmyk(79%, 17.8%, 0%, 38.4%)
CIE-LAB	lab(50.05, -17.14, -22.72)
CIE-LCH	lch(50.05, 28.46, 232.97°)
OKLab	oklab(56.23% -0.0698 -0.0636)
OKLCH	oklch(56.23% 0.094 222.4)
XYZ	xyz(14.5607, 18.4564, 34.6868)
Luminance	0.1846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21819D #9D3D21

analogous

#219D7B #21819D #21439D

triadic

#21819D #9D2181 #819D21

tetradic

#21819D #7B219D #9D3D21 #439D21

square

#21819D #7B219D #9D3D21 #439D21

split-complementary

#21819D #9D2143 #9D7B21

monochromatic

#0C2E38 #16576A #21819D #2CABD0 #5CC0DD

Accessibility & contrast

On white

4.48

#21819D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#21819D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21819D

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21819D	#FFFFFF	#000000	##000000
##21819D	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717E9E

Deuteranopia (green-blind)

#60729D

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #21819d;
/* rgb */ color: rgb(33, 129, 157);
/* oklch */ color: oklch(56.2% 0.094 222.4);

Tailwind

colors: {
  custom: {
    50: '#71a5ba',
    500: '#21819d',
    950: '#000000',
  },
}

SCSS

$custom: #21819d;
$custom-light: #71a5ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21819d",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 157
  },
  "hsl": {
    "h": 193.548,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.56231,
    "c": 0.09445,
    "h": 222.4
  },
  "luminance": 0.18458
}

Semantic roles & 50–950 ramp

primary

#21819D

secondary

#C17059

accent

#6640E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21819D

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

Preview Lab → · Contrast checker → · Palette generator →