#21859C#21859C

#21859C is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.2% C 0.093 H 217.4°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#21859C
RGB	rgb(33, 133, 156)
HSL	hsl(191, 65%, 37%)
HSV	hsv(191, 79%, 61%)
CMYK	cmyk(78.8%, 14.7%, 0%, 38.8%)
CIE-LAB	lab(51.26, -19.65, -20.27)
CIE-LCH	lch(51.26, 28.23, 225.89°)
OKLab	oklab(57.2% -0.0742 -0.0566)
OKLCH	oklch(57.2% 0.093 217.4)
XYZ	xyz(15.0129, 19.4968, 34.4181)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21859C #9C3821

analogous

#219C76 #21859C #21479C

triadic

#21859C #9C2185 #859C21

tetradic

#21859C #76219C #9C3821 #479C21

square

#21859C #76219C #9C3821 #479C21

split-complementary

#21859C #9C2147 #9C7621

monochromatic

#0C2F37 #165A69 #21859C #2CB0CF #5BC4DC

Accessibility & contrast

On white

4.29

#21859C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#21859C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21859C

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21859C	#FFFFFF	#000000	##000000
##21859C	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76819D

Deuteranopia (green-blind)

#66759C

Tritanopia (blue-blind)

#008D8C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #21859c;
/* rgb */ color: rgb(33, 133, 156);
/* oklch */ color: oklch(57.2% 0.093 217.4);

Tailwind

colors: {
  custom: {
    50: '#71a8b9',
    500: '#21859c',
    950: '#000000',
  },
}

SCSS

$custom: #21859c;
$custom-light: #71a8b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21859c",
  "rgb": {
    "r": 33,
    "g": 133,
    "b": 156
  },
  "hsl": {
    "h": 191.22,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.57197,
    "c": 0.09334,
    "h": 217.4
  },
  "luminance": 0.19499
}

Semantic roles & 50–950 ramp

primary

#21859C

secondary

#C16C58

accent

#5F40E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21859C

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

Preview Lab → · Contrast checker → · Palette generator →