#212B7B#212B7B

#212B7B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.6% C 0.135 H 271.5°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#212B7B
RGB	rgb(33, 43, 123)
HSL	hsl(233, 58%, 31%)
HSV	hsv(233, 73%, 48%)
CMYK	cmyk(73.2%, 65%, 0%, 51.8%)
CIE-LAB	lab(21.87, 24.91, -46.74)
CIE-LCH	lch(21.87, 52.96, 298.05°)
OKLab	oklab(33.64% 0.0035 -0.1349)
OKLCH	oklch(33.64% 0.135 271.5)
XYZ	xyz(5.0650, 3.4806, 19.1400)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212B7B #7B7121

analogous

#21587B #212B7B #44217B

triadic

#212B7B #7B212B #2B7B21

tetradic

#212B7B #7B2158 #7B7121 #217B44

square

#212B7B #7B2158 #7B7121 #217B44

split-complementary

#212B7B #7B4421 #587B21

monochromatic

#07091A #141A4B #212B7B #2E3CAB #4857CE

Accessibility & contrast

On white

12.38

#212B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#212B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212B7B

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212B7B	#FFFFFF	#000000	##FFFFFF
##212B7B	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #212b7b;
/* rgb */ color: rgb(33, 43, 123);
/* oklch */ color: oklch(33.6% 0.135 271.5);

Tailwind

colors: {
  custom: {
    50: '#6a64a2',
    500: '#212b7b',
    950: '#000000',
  },
}

SCSS

$custom: #212b7b;
$custom-light: #6a64a2;
$custom-dark: #000000;

JSON

{
  "hex": "#212b7b",
  "rgb": {
    "r": 33,
    "g": 43,
    "b": 123
  },
  "hsl": {
    "h": 233.333,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33641,
    "c": 0.13498,
    "h": 271.5
  },
  "luminance": 0.03481
}

Semantic roles & 50–950 ramp

primary

#212B7B

secondary

#AEA34A

accent

#D047E1

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #212B7B

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

Preview Lab → · Contrast checker → · Palette generator →