#21839A#21839A

#21839A is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.6% C 0.092 H 217.7°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#21839A
RGB	rgb(33, 131, 154)
HSL	hsl(191, 65%, 37%)
HSV	hsv(191, 79%, 60%)
CMYK	cmyk(78.6%, 14.9%, 0%, 39.6%)
CIE-LAB	lab(50.55, -19.26, -20.19)
CIE-LCH	lch(50.55, 27.90, 226.36°)
OKLab	oklab(56.6% -0.073 -0.0564)
OKLCH	oklch(56.6% 0.092 217.7)
XYZ	xyz(14.5738, 18.8872, 33.4431)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21839A #9A3821

analogous

#219A75 #21839A #21479A

triadic

#21839A #9A2183 #839A21

tetradic

#21839A #75219A #9A3821 #479A21

square

#21839A #75219A #9A3821 #479A21

split-complementary

#21839A #9A2147 #9A7521

monochromatic

#0B2D35 #165868 #21839A #2CAECC #5AC3DC

Accessibility & contrast

On white

4.40

#21839A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#21839A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21839A

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21839A	#FFFFFF	#000000	##000000
##21839A	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9B

Deuteranopia (green-blind)

#64739A

Tritanopia (blue-blind)

#008B8A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #21839a;
/* rgb */ color: rgb(33, 131, 154);
/* oklch */ color: oklch(56.6% 0.092 217.7);

Tailwind

colors: {
  custom: {
    50: '#71a7b7',
    500: '#21839a',
    950: '#000000',
  },
}

SCSS

$custom: #21839a;
$custom-light: #71a7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#21839a",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 154
  },
  "hsl": {
    "h": 191.405,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.56601,
    "c": 0.09226,
    "h": 217.7
  },
  "luminance": 0.18889
}

Semantic roles & 50–950 ramp

primary

#21839A

secondary

#C06B57

accent

#6040E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21839A

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

Preview Lab → · Contrast checker → · Palette generator →