#212F9E#212F9E

#212F9E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.8% C 0.178 H 269.5°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#212F9E
RGB	rgb(33, 47, 158)
HSL	hsl(233, 65%, 37%)
HSV	hsv(233, 79%, 62%)
CMYK	cmyk(79.1%, 70.3%, 0%, 38%)
CIE-LAB	lab(26.23, 35.39, -61.35)
CIE-LCH	lch(26.23, 70.82, 299.98°)
OKLab	oklab(37.84% -0.0017 -0.1776)
OKLCH	oklch(37.84% 0.178 269.5)
XYZ	xyz(7.8132, 4.8241, 32.8605)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212F9E #9E9021

analogous

#216E9E #212F9E #52219E

triadic

#212F9E #9E212F #2F9E21

tetradic

#212F9E #9E216E #9E9021 #219E52

square

#212F9E #9E216E #9E9021 #219E52

split-complementary

#212F9E #9E5221 #6E9E21

monochromatic

#0C1139 #16206B #212F9E #2C3ED1 #5C6BDD

Accessibility & contrast

On white

10.69

#212F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#212F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212F9E

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212F9E	#FFFFFF	#000000	##FFFFFF
##212F9E	1.00	10.69	1.97	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A1

Deuteranopia (green-blind)

#00389C

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #212f9e;
/* rgb */ color: rgb(33, 47, 158);
/* oklch */ color: oklch(37.8% 0.178 269.5);

Tailwind

colors: {
  custom: {
    50: '#7368bc',
    500: '#212f9e',
    950: '#000000',
  },
}

SCSS

$custom: #212f9e;
$custom-light: #7368bc;
$custom-dark: #000000;

JSON

{
  "hex": "#212f9e",
  "rgb": {
    "r": 33,
    "g": 47,
    "b": 158
  },
  "hsl": {
    "h": 233.28,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37842,
    "c": 0.17765,
    "h": 269.5
  },
  "luminance": 0.04825
}

Semantic roles & 50–950 ramp

primary

#212F9E

secondary

#C1B659

accent

#D53FE8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #212F9E

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

Preview Lab → · Contrast checker → · Palette generator →