#212B7F#212B7F

#212B7F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.141 H 271.4°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#212B7F
RGB	rgb(33, 43, 127)
HSL	hsl(234, 59%, 31%)
HSV	hsv(234, 74%, 50%)
CMYK	cmyk(74%, 66.1%, 0%, 50.2%)
CIE-LAB	lab(22.24, 26.43, -48.67)
CIE-LCH	lch(22.24, 55.38, 298.51°)
OKLab	oklab(34.02% 0.0033 -0.1406)
OKLCH	oklch(34.02% 0.141 271.4)
XYZ	xyz(5.3205, 3.5829, 20.4857)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212B7F #7F7521

analogous

#215A7F #212B7F #46217F

triadic

#212B7F #7F212B #2B7F21

tetradic

#212B7F #7F215A #7F7521 #217F46

square

#212B7F #7F215A #7F7521 #217F46

split-complementary

#212B7F #7F4621 #5A7F21

monochromatic

#080A1E #141B4E #212B7F #2E3BB0 #4A59D0

Accessibility & contrast

On white

12.23

#212B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#212B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212B7F

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212B7F	#FFFFFF	#000000	##FFFFFF
##212B7F	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A82

Deuteranopia (green-blind)

#00317D

Tritanopia (blue-blind)

#004151

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #212b7f;
/* rgb */ color: rgb(33, 43, 127);
/* oklch */ color: oklch(34.0% 0.141 271.4);

Tailwind

colors: {
  custom: {
    50: '#6b64a5',
    500: '#212b7f',
    950: '#000000',
  },
}

SCSS

$custom: #212b7f;
$custom-light: #6b64a5;
$custom-dark: #000000;

JSON

{
  "hex": "#212b7f",
  "rgb": {
    "r": 33,
    "g": 43,
    "b": 127
  },
  "hsl": {
    "h": 233.617,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34024,
    "c": 0.14064,
    "h": 271.4
  },
  "luminance": 0.03583
}

Semantic roles & 50–950 ramp

primary

#212B7F

secondary

#B2A74A

accent

#D146E2

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08050F

muted

#7A7A7F

Preview Lab

Preview with #212B7F

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

Preview Lab → · Contrast checker → · Palette generator →