#21356F#21356F

#21356F is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.7% C 0.104 H 266.7°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#21356F
RGB	rgb(33, 53, 111)
HSL	hsl(225, 54%, 28%)
HSV	hsv(225, 70%, 44%)
CMYK	cmyk(70.3%, 52.3%, 0%, 56.5%)
CIE-LAB	lab(23.73, 13.17, -36.07)
CIE-LCH	lch(23.73, 38.40, 290.07°)
OKLab	oklab(34.72% -0.006 -0.1034)
OKLCH	oklch(34.72% 0.104 266.7)
XYZ	xyz(4.7686, 4.0168, 15.5599)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21356F #6F5B21

analogous

#215C6F #21356F #34216F

triadic

#21356F #6F2135 #356F21

tetradic

#21356F #6F215C #6F5B21 #216F34

square

#21356F #6F215C #6F5B21 #216F34

split-complementary

#21356F #6F3421 #5C6F21

monochromatic

#070B18 #131E40 #21356F #2F4C9E #4365C7

Accessibility & contrast

On white

11.64

#21356F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#21356F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21356F

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21356F	#FFFFFF	#000000	##FFFFFF
##21356F	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143C71

Deuteranopia (green-blind)

#00356E

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #21356f;
/* rgb */ color: rgb(33, 53, 111);
/* oklch */ color: oklch(34.7% 0.104 266.7);

Tailwind

colors: {
  custom: {
    50: '#666b99',
    500: '#21356f',
    950: '#000000',
  },
}

SCSS

$custom: #21356f;
$custom-light: #666b99;
$custom-dark: #000000;

JSON

{
  "hex": "#21356f",
  "rgb": {
    "r": 33,
    "g": 53,
    "b": 111
  },
  "hsl": {
    "h": 224.615,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3472,
    "c": 0.10361,
    "h": 266.7
  },
  "luminance": 0.04017
}

Semantic roles & 50–950 ramp

primary

#21356F

secondary

#A38C49

accent

#B84ADE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #21356F

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

Preview Lab → · Contrast checker → · Palette generator →