#21559D#21559D

#21559D is a mid, vivid cyan. Relative luminance 0.093; OKLCH L 45.5% C 0.130 H 257.5°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#21559D
RGB	rgb(33, 85, 157)
HSL	hsl(215, 65%, 37%)
HSV	hsv(215, 79%, 62%)
CMYK	cmyk(79%, 45.9%, 0%, 38.4%)
CIE-LAB	lab(36.47, 9.57, -44.09)
CIE-LCH	lch(36.47, 45.11, 282.24°)
OKLab	oklab(45.51% -0.0281 -0.1264)
OKLCH	oklch(45.51% 0.13 257.5)
XYZ	xyz(9.9593, 9.2535, 33.1530)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21559D #9D6921

analogous

#21939D #21559D #2B219D

triadic

#21559D #9D2155 #559D21

tetradic

#21559D #9D2193 #9D6921 #219D2B

square

#21559D #9D2193 #9D6921 #219D2B

split-complementary

#21559D #9D2B21 #939D21

monochromatic

#0C1E38 #163A6A #21559D #2C70D0 #5C92DD

Accessibility & contrast

On white

7.37

#21559D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#21559D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21559D

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21559D	#FFFFFF	#000000	##FFFFFF
##21559D	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5CA0

Deuteranopia (green-blind)

#14519C

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #21559d;
/* rgb */ color: rgb(33, 85, 157);
/* oklch */ color: oklch(45.5% 0.130 257.5);

Tailwind

colors: {
  custom: {
    50: '#7084ba',
    500: '#21559d',
    950: '#000000',
  },
}

SCSS

$custom: #21559d;
$custom-light: #7084ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21559d",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 157
  },
  "hsl": {
    "h": 214.839,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.45508,
    "c": 0.12951,
    "h": 257.5
  },
  "luminance": 0.09255
}

Semantic roles & 50–950 ramp

primary

#21559D

secondary

#C19559

accent

#A240E8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21559D

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

Preview Lab → · Contrast checker → · Palette generator →