#21879C#21879C

#21879C is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 57.7% C 0.093 H 215.3°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#21879C
RGB	rgb(33, 135, 156)
HSL	hsl(190, 65%, 37%)
HSV	hsv(190, 79%, 61%)
CMYK	cmyk(78.8%, 13.5%, 0%, 38.8%)
CIE-LAB	lab(51.89, -20.72, -19.30)
CIE-LCH	lch(51.89, 28.32, 222.98°)
OKLab	oklab(57.71% -0.0762 -0.0539)
OKLCH	oklch(57.71% 0.093 215.3)
XYZ	xyz(15.2894, 20.0497, 34.5102)
Luminance	0.2005 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21879C #9C3621

analogous

#219C74 #21879C #214A9C

triadic

#21879C #9C2187 #879C21

tetradic

#21879C #74219C #9C3621 #4A9C21

square

#21879C #74219C #9C3621 #4A9C21

split-complementary

#21879C #9C214A #9C7421

monochromatic

#0C3037 #165B69 #21879C #2CB3CF #5BC6DC

Accessibility & contrast

On white

4.19

#21879C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#21879C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21879C

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21879C	#FFFFFF	#000000	##000000
##21879C	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78839D

Deuteranopia (green-blind)

#68779C

Tritanopia (blue-blind)

#008F8E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #21879c;
/* rgb */ color: rgb(33, 135, 156);
/* oklch */ color: oklch(57.7% 0.093 215.3);

Tailwind

colors: {
  custom: {
    50: '#72aab9',
    500: '#21879c',
    950: '#000000',
  },
}

SCSS

$custom: #21879c;
$custom-light: #72aab9;
$custom-dark: #000000;

JSON

{
  "hex": "#21879c",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 156
  },
  "hsl": {
    "h": 190.244,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.57705,
    "c": 0.09333,
    "h": 215.3
  },
  "luminance": 0.20052
}

Semantic roles & 50–950 ramp

primary

#21879C

secondary

#C16A58

accent

#5C40E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #21879C

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

Preview Lab → · Contrast checker → · Palette generator →