#21859B#21859B

#21859B is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.2% C 0.093 H 216.5°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#21859B
RGB	rgb(33, 133, 155)
HSL	hsl(191, 65%, 37%)
HSV	hsv(191, 79%, 61%)
CMYK	cmyk(78.7%, 14.2%, 0%, 39.2%)
CIE-LAB	lab(51.22, -19.99, -19.75)
CIE-LCH	lch(51.22, 28.10, 224.65°)
OKLab	oklab(57.15% -0.0746 -0.0551)
OKLCH	oklch(57.15% 0.093 216.5)
XYZ	xyz(14.9286, 19.4631, 33.9739)
Luminance	0.1946 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21859B #9B3721

analogous

#219B74 #21859B #21489B

triadic

#21859B #9B2185 #859B21

tetradic

#21859B #74219B #9B3721 #489B21

square

#21859B #74219B #9B3721 #489B21

split-complementary

#21859B #9B2148 #9B7421

monochromatic

#0C2E36 #165A69 #21859B #2CB0CD #5AC5DC

Accessibility & contrast

On white

4.29

#21859B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#21859B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21859B

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21859B	#FFFFFF	#000000	##000000
##21859B	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76819C

Deuteranopia (green-blind)

#66759B

Tritanopia (blue-blind)

#008D8C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #21859b;
/* rgb */ color: rgb(33, 133, 155);
/* oklch */ color: oklch(57.2% 0.093 216.5);

Tailwind

colors: {
  custom: {
    50: '#71a8b8',
    500: '#21859b',
    950: '#000000',
  },
}

SCSS

$custom: #21859b;
$custom-light: #71a8b8;
$custom-dark: #000000;

JSON

{
  "hex": "#21859b",
  "rgb": {
    "r": 33,
    "g": 133,
    "b": 155
  },
  "hsl": {
    "h": 190.82,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.57153,
    "c": 0.09277,
    "h": 216.5
  },
  "luminance": 0.19465
}

Semantic roles & 50–950 ramp

primary

#21859B

secondary

#C06A58

accent

#5E40E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21859B

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

Preview Lab → · Contrast checker → · Palette generator →