#211B81#211B81

#211B81 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.6% C 0.161 H 274.5°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#211B81
RGB	rgb(33, 27, 129)
HSL	hsl(244, 65%, 31%)
HSV	hsv(244, 79%, 51%)
CMYK	cmyk(74.4%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(18.76, 37.25, -55.65)
CIE-LCH	lch(18.76, 66.97, 303.80°)
OKLab	oklab(31.59% 0.0128 -0.161)
OKLCH	oklch(31.59% 0.161 274.5)
XYZ	xyz(4.9803, 2.6917, 21.0217)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B81 #7B811B

analogous

#1B4881 #211B81 #541B81

triadic

#211B81 #81211B #1B8121

tetradic

#211B81 #811B48 #7B811B #1B8154

square

#211B81 #811B48 #7B811B #1B8154

split-complementary

#211B81 #81541B #48811B

monochromatic

#07061C #14104E #211B81 #2E26B4 #483FD7

Accessibility & contrast

On white

13.65

#211B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#211B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B81

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B81	#FFFFFF	#000000	##FFFFFF
##211B81	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#00297F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #211b81;
/* rgb */ color: rgb(33, 27, 129);
/* oklch */ color: oklch(31.6% 0.161 274.5);

Tailwind

colors: {
  custom: {
    50: '#6d59a7',
    500: '#211b81',
    950: '#000000',
  },
}

SCSS

$custom: #211b81;
$custom-light: #6d59a7;
$custom-dark: #000000;

JSON

{
  "hex": "#211b81",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 243.529,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31586,
    "c": 0.16148,
    "h": 274.5
  },
  "luminance": 0.02692
}

Semantic roles & 50–950 ramp

primary

#211B81

secondary

#AEB543

accent

#E83FDE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #211B81

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

Preview Lab → · Contrast checker → · Palette generator →