#211B9E#211B9E

#211B9E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.0% C 0.197 H 271.7°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#211B9E
RGB	rgb(33, 27, 158)
HSL	hsl(243, 71%, 36%)
HSV	hsv(243, 83%, 62%)
CMYK	cmyk(79.1%, 82.9%, 0%, 38%)
CIE-LAB	lab(22.21, 46.74, -67.98)
CIE-LCH	lch(22.21, 82.50, 304.51°)
OKLab	oklab(35% 0.0058 -0.1967)
OKLCH	oklch(35% 0.197 271.7)
XYZ	xyz(7.1886, 3.5750, 32.6523)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B9E #989E1B

analogous

#1B579E #211B9E #631B9E

triadic

#211B9E #9E211B #1B9E21

tetradic

#211B9E #9E1B57 #989E1B #1B9E63

square

#211B9E #9E1B57 #989E1B #1B9E63

split-complementary

#211B9E #9E631B #579E1B

monochromatic

#0B0935 #16126A #211B9E #2C24D2 #5952E1

Accessibility & contrast

On white

12.24

#211B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#211B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B9E

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B9E	#FFFFFF	#000000	##FFFFFF
##211B9E	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA2

Deuteranopia (green-blind)

#002E9C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #211b9e;
/* rgb */ color: rgb(33, 27, 158);
/* oklch */ color: oklch(35.0% 0.197 271.7);

Tailwind

colors: {
  custom: {
    50: '#745bbc',
    500: '#211b9e',
    950: '#000000',
  },
}

SCSS

$custom: #211b9e;
$custom-light: #745bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#211b9e",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 242.748,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.34997,
    "c": 0.19683,
    "h": 271.7
  },
  "luminance": 0.03576
}

Semantic roles & 50–950 ramp

primary

#211B9E

secondary

#BFC451

accent

#EE3AE5

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #211B9E

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

Preview Lab → · Contrast checker → · Palette generator →