#21839C#21839C

#21839C is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 56.7% C 0.093 H 219.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#21839C
RGB	rgb(33, 131, 156)
HSL	hsl(192, 65%, 37%)
HSV	hsv(192, 79%, 61%)
CMYK	cmyk(78.8%, 16%, 0%, 38.8%)
CIE-LAB	lab(50.63, -18.57, -21.23)
CIE-LCH	lch(50.63, 28.21, 228.83°)
OKLab	oklab(56.69% -0.0722 -0.0594)
OKLCH	oklch(56.69% 0.093 219.4)
XYZ	xyz(14.7417, 18.9544, 34.3277)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21839C #9C3A21

analogous

#219C78 #21839C #21469C

triadic

#21839C #9C2183 #839C21

tetradic

#21839C #78219C #9C3A21 #469C21

square

#21839C #78219C #9C3A21 #469C21

split-complementary

#21839C #9C2146 #9C7821

monochromatic

#0C2E37 #165969 #21839C #2CADCF #5BC2DC

Accessibility & contrast

On white

4.38

#21839C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#21839C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21839C

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21839C	#FFFFFF	#000000	##000000
##21839C	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9D

Deuteranopia (green-blind)

#63739C

Tritanopia (blue-blind)

#008B8B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #21839c;
/* rgb */ color: rgb(33, 131, 156);
/* oklch */ color: oklch(56.7% 0.093 219.4);

Tailwind

colors: {
  custom: {
    50: '#71a7b9',
    500: '#21839c',
    950: '#000000',
  },
}

SCSS

$custom: #21839c;
$custom-light: #71a7b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21839c",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 156
  },
  "hsl": {
    "h": 192.195,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.56691,
    "c": 0.09347,
    "h": 219.4
  },
  "luminance": 0.18956
}

Semantic roles & 50–950 ramp

primary

#21839C

secondary

#C16D58

accent

#6240E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21839C

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

Preview Lab → · Contrast checker → · Palette generator →