#211B8A#211B8A

#211B8A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.173 H 273.5°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#211B8A
RGB	rgb(33, 27, 138)
HSL	hsl(243, 67%, 32%)
HSV	hsv(243, 80%, 54%)
CMYK	cmyk(76.1%, 80.4%, 0%, 45.9%)
CIE-LAB	lab(19.81, 40.27, -59.60)
CIE-LCH	lch(19.81, 71.93, 304.05°)
OKLab	oklab(32.63% 0.0107 -0.1724)
OKLCH	oklch(32.63% 0.173 273.5)
XYZ	xyz(5.6050, 2.9416, 24.3122)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B8A #848A1B

analogous

#1B4D8A #211B8A #581B8A

triadic

#211B8A #8A211B #1B8A21

tetradic

#211B8A #8A1B4D #848A1B #1B8A58

square

#211B8A #8A1B4D #848A1B #1B8A58

split-complementary

#211B8A #8A581B #4D8A1B

monochromatic

#090724 #151157 #211B8A #2D25BD #4D45DB

Accessibility & contrast

On white

13.22

#211B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#211B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B8A

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B8A	#FFFFFF	#000000	##FFFFFF
##211B8A	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358D

Deuteranopia (green-blind)

#002B88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #211b8a;
/* rgb */ color: rgb(33, 27, 138);
/* oklch */ color: oklch(32.6% 0.173 273.5);

Tailwind

colors: {
  custom: {
    50: '#6f5aad',
    500: '#211b8a',
    950: '#000000',
  },
}

SCSS

$custom: #211b8a;
$custom-light: #6f5aad;
$custom-dark: #000000;

JSON

{
  "hex": "#211b8a",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 138
  },
  "hsl": {
    "h": 243.243,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32625,
    "c": 0.17275,
    "h": 273.5
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#211B8A

secondary

#B6BC45

accent

#EA3EE1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #211B8A

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

Preview Lab → · Contrast checker → · Palette generator →