#21829B#21829B

#21829B is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.4% C 0.093 H 219.6°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#21829B
RGB	rgb(33, 130, 155)
HSL	hsl(192, 65%, 37%)
HSV	hsv(192, 79%, 61%)
CMYK	cmyk(78.7%, 16.1%, 0%, 39.2%)
CIE-LAB	lab(50.28, -18.38, -21.20)
CIE-LCH	lch(50.28, 28.05, 229.08°)
OKLab	oklab(56.39% -0.0716 -0.0593)
OKLCH	oklch(56.39% 0.093 219.6)
XYZ	xyz(14.5237, 18.6534, 33.8390)
Luminance	0.1865 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21829B #9B3A21

analogous

#219B77 #21829B #21459B

triadic

#21829B #9B2182 #829B21

tetradic

#21829B #77219B #9B3A21 #459B21

square

#21829B #77219B #9B3A21 #459B21

split-complementary

#21829B #9B2145 #9B7721

monochromatic

#0C2D36 #165869 #21829B #2CACCD #5AC1DC

Accessibility & contrast

On white

4.44

#21829B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#21829B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21829B

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21829B	#FFFFFF	#000000	##000000
##21829B	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#737E9C

Deuteranopia (green-blind)

#62739B

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #21829b;
/* rgb */ color: rgb(33, 130, 155);
/* oklch */ color: oklch(56.4% 0.093 219.6);

Tailwind

colors: {
  custom: {
    50: '#71a6b8',
    500: '#21829b',
    950: '#000000',
  },
}

SCSS

$custom: #21829b;
$custom-light: #71a6b8;
$custom-dark: #000000;

JSON

{
  "hex": "#21829b",
  "rgb": {
    "r": 33,
    "g": 130,
    "b": 155
  },
  "hsl": {
    "h": 192.295,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.56393,
    "c": 0.09295,
    "h": 219.6
  },
  "luminance": 0.18655
}

Semantic roles & 50–950 ramp

primary

#21829B

secondary

#C06D58

accent

#6240E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21829B

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

Preview Lab → · Contrast checker → · Palette generator →