#213B73#213B73

#213B73 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.102 H 263.5°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#213B73
RGB	rgb(33, 59, 115)
HSL	hsl(221, 55%, 29%)
HSV	hsv(221, 71%, 45%)
CMYK	cmyk(71.3%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(25.83, 10.54, -35.24)
CIE-LCH	lch(25.83, 36.79, 286.65°)
OKLab	oklab(36.42% -0.0116 -0.1009)
OKLCH	oklch(36.42% 0.102 263.5)
XYZ	xyz(5.2846, 4.6885, 16.8428)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B73 #735921

analogous

#216473 #213B73 #302173

triadic

#213B73 #73213B #3B7321

tetradic

#213B73 #732164 #735921 #217330

square

#213B73 #732164 #735921 #217330

split-complementary

#213B73 #733021 #647321

monochromatic

#070C18 #132343 #213B73 #2F53A3 #456FCA

Accessibility & contrast

On white

10.84

#213B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#213B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B73

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B73	#FFFFFF	#000000	##FFFFFF
##213B73	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4175

Deuteranopia (green-blind)

#0D3A72

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #213b73;
/* rgb */ color: rgb(33, 59, 115);
/* oklch */ color: oklch(36.4% 0.102 263.5);

Tailwind

colors: {
  custom: {
    50: '#67709c',
    500: '#213b73',
    950: '#000000',
  },
}

SCSS

$custom: #213b73;
$custom-light: #67709c;
$custom-dark: #000000;

JSON

{
  "hex": "#213b73",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 220.976,
    "s": 55.405,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36416,
    "c": 0.10157,
    "h": 263.5
  },
  "luminance": 0.04689
}

Semantic roles & 50–950 ramp

primary

#213B73

secondary

#A68949

accent

#AF49DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #213B73

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

Preview Lab → · Contrast checker → · Palette generator →