#213B78#213B78

#213B78 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.109 H 264.3°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#213B78
RGB	rgb(33, 59, 120)
HSL	hsl(222, 57%, 30%)
HSV	hsv(222, 73%, 47%)
CMYK	cmyk(72.5%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(26.18, 12.53, -37.85)
CIE-LCH	lch(26.18, 39.87, 288.32°)
OKLab	oklab(36.8% -0.0108 -0.1086)
OKLCH	oklch(36.8% 0.109 264.3)
XYZ	xyz(5.5801, 4.8068, 18.3994)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B78 #785E21

analogous

#216778 #213B78 #322178

triadic

#213B78 #78213B #3B7821

tetradic

#213B78 #782167 #785E21 #217832

square

#213B78 #782167 #785E21 #217832

split-complementary

#213B78 #783221 #677821

monochromatic

#070C18 #142348 #213B78 #2E53A8 #476FCC

Accessibility & contrast

On white

10.71

#213B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#213B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B78

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B78	#FFFFFF	#000000	##FFFFFF
##213B78	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19427A

Deuteranopia (green-blind)

#013A77

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #213b78;
/* rgb */ color: rgb(33, 59, 120);
/* oklch */ color: oklch(36.8% 0.109 264.3);

Tailwind

colors: {
  custom: {
    50: '#68709f',
    500: '#213b78',
    950: '#000000',
  },
}

SCSS

$custom: #213b78;
$custom-light: #68709f;
$custom-dark: #000000;

JSON

{
  "hex": "#213b78",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 222.069,
    "s": 56.863,
    "l": 30
  },
  "oklch": {
    "l": 0.36795,
    "c": 0.10912,
    "h": 264.3
  },
  "luminance": 0.04807
}

Semantic roles & 50–950 ramp

primary

#213B78

secondary

#AB8E4A

accent

#B348E0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #213B78

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

Preview Lab → · Contrast checker → · Palette generator →