#21376C#21376C

#21376C is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.096 H 264.9°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#21376C
RGB	rgb(33, 55, 108)
HSL	hsl(222, 53%, 28%)
HSV	hsv(222, 69%, 42%)
CMYK	cmyk(69.4%, 49.1%, 0%, 57.6%)
CIE-LAB	lab(24.12, 10.57, -33.51)
CIE-LCH	lch(24.12, 35.13, 287.51°)
OKLab	oklab(34.95% -0.0086 -0.0959)
OKLCH	oklch(34.95% 0.096 264.9)
XYZ	xyz(4.6992, 4.1380, 14.7355)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21376C #6C5621

analogous

#215C6C #21376C #31216C

triadic

#21376C #6C2137 #376C21

tetradic

#21376C #6C215C #6C5621 #216C31

square

#21376C #6C215C #6C5621 #216C31

split-complementary

#21376C #6C3121 #5C6C21

monochromatic

#070C17 #131F3D #21376C #2F4F9B #4269C5

Accessibility & contrast

On white

11.49

#21376C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#21376C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21376C

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21376C	#FFFFFF	#000000	##FFFFFF
##21376C	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3D6E

Deuteranopia (green-blind)

#0E366B

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #21376c;
/* rgb */ color: rgb(33, 55, 108);
/* oklch */ color: oklch(35.0% 0.096 264.9);

Tailwind

colors: {
  custom: {
    50: '#656d96',
    500: '#21376c',
    950: '#000000',
  },
}

SCSS

$custom: #21376c;
$custom-light: #656d96;
$custom-dark: #000000;

JSON

{
  "hex": "#21376c",
  "rgb": {
    "r": 33,
    "g": 55,
    "b": 108
  },
  "hsl": {
    "h": 222.4,
    "s": 53.191,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34954,
    "c": 0.09625,
    "h": 264.9
  },
  "luminance": 0.04138
}

Semantic roles & 50–950 ramp

primary

#21376C

secondary

#A08649

accent

#B24BDD

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #21376C

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

Preview Lab → · Contrast checker → · Palette generator →