#211D8B#211D8B

#211D8B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.172 H 273.2°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#211D8B
RGB	rgb(33, 29, 139)
HSL	hsl(242, 65%, 33%)
HSV	hsv(242, 79%, 55%)
CMYK	cmyk(76.3%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(20.30, 39.51, -59.40)
CIE-LCH	lch(20.30, 71.34, 303.63°)
OKLab	oklab(33.01% 0.0096 -0.1719)
OKLCH	oklch(33.01% 0.172 273.2)
XYZ	xyz(5.7252, 3.0655, 24.7111)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211D8B #878B1D

analogous

#1D508B #211D8B #581D8B

triadic

#211D8B #8B211D #1D8B21

tetradic

#211D8B #8B1D50 #878B1D #1D8B58

square

#211D8B #8B1D50 #878B1D #1D8B58

split-complementary

#211D8B #8B581D #508B1D

monochromatic

#090826 #151258 #211D8B #2D28BE #4F49D9

Accessibility & contrast

On white

13.02

#211D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#211D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211D8B

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211D8B	#FFFFFF	#000000	##FFFFFF
##211D8B	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368E

Deuteranopia (green-blind)

#002C89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #211d8b;
/* rgb */ color: rgb(33, 29, 139);
/* oklch */ color: oklch(33.0% 0.172 273.2);

Tailwind

colors: {
  custom: {
    50: '#6f5bae',
    500: '#211d8b',
    950: '#000000',
  },
}

SCSS

$custom: #211d8b;
$custom-light: #6f5bae;
$custom-dark: #000000;

JSON

{
  "hex": "#211d8b",
  "rgb": {
    "r": 33,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 242.182,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33007,
    "c": 0.17215,
    "h": 273.2
  },
  "luminance": 0.03066
}

Semantic roles & 50–950 ramp

primary

#211D8B

secondary

#B7BB49

accent

#E83FE2

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #211D8B

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

Preview Lab → · Contrast checker → · Palette generator →