#213A9A#213A9A

#213A9A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.159 H 267.2°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#213A9A
RGB	rgb(33, 58, 154)
HSL	hsl(228, 65%, 37%)
HSV	hsv(228, 79%, 60%)
CMYK	cmyk(78.6%, 62.3%, 0%, 39.6%)
CIE-LAB	lab(28.59, 26.64, -55.03)
CIE-LCH	lch(28.59, 61.14, 295.83°)
OKLab	oklab(39.46% -0.0077 -0.1591)
OKLCH	oklch(39.46% 0.159 267.2)
XYZ	xyz(7.9710, 5.6816, 31.2422)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213A9A #9A8121

analogous

#21779A #213A9A #44219A

triadic

#213A9A #9A213A #3A9A21

tetradic

#213A9A #9A2177 #9A8121 #219A44

square

#213A9A #9A2177 #9A8121 #219A44

split-complementary

#213A9A #9A4421 #779A21

monochromatic

#0B1435 #162768 #213A9A #2C4DCC #5A75DC

Accessibility & contrast

On white

9.83

#213A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#213A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213A9A

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213A9A	#FFFFFF	#000000	##FFFFFF
##213A9A	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#003E98

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #213a9a;
/* rgb */ color: rgb(33, 58, 154);
/* oklch */ color: oklch(39.5% 0.159 267.2);

Tailwind

colors: {
  custom: {
    50: '#706fb9',
    500: '#213a9a',
    950: '#000000',
  },
}

SCSS

$custom: #213a9a;
$custom-light: #706fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#213a9a",
  "rgb": {
    "r": 33,
    "g": 58,
    "b": 154
  },
  "hsl": {
    "h": 227.603,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39463,
    "c": 0.15927,
    "h": 267.2
  },
  "luminance": 0.05683
}

Semantic roles & 50–950 ramp

primary

#213A9A

secondary

#C0AA57

accent

#C540E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #213A9A

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

Preview Lab → · Contrast checker → · Palette generator →