#213A71#213A71

#213A71 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.100 H 263.8°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#213A71
RGB	rgb(33, 58, 113)
HSL	hsl(221, 55%, 29%)
HSV	hsv(221, 71%, 44%)
CMYK	cmyk(70.8%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(25.39, 10.45, -34.68)
CIE-LCH	lch(25.39, 36.22, 286.76°)
OKLab	oklab(36.03% -0.0109 -0.0993)
OKLCH	oklch(36.03% 0.1 263.8)
XYZ	xyz(5.1198, 4.5412, 16.2263)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213A71 #715821

analogous

#216271 #213A71 #302171

triadic

#213A71 #71213A #3A7121

tetradic

#213A71 #712162 #715821 #217130

square

#213A71 #712162 #715821 #217130

split-complementary

#213A71 #713021 #627121

monochromatic

#070C18 #132242 #213A71 #2F52A0 #446DC8

Accessibility & contrast

On white

11.00

#213A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#213A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213A71

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213A71	#FFFFFF	#000000	##FFFFFF
##213A71	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4073

Deuteranopia (green-blind)

#0E3970

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #213a71;
/* rgb */ color: rgb(33, 58, 113);
/* oklch */ color: oklch(36.0% 0.100 263.8);

Tailwind

colors: {
  custom: {
    50: '#666f9a',
    500: '#213a71',
    950: '#000000',
  },
}

SCSS

$custom: #213a71;
$custom-light: #666f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#213a71",
  "rgb": {
    "r": 33,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 221.25,
    "s": 54.795,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36032,
    "c": 0.09986,
    "h": 263.8
  },
  "luminance": 0.04542
}

Semantic roles & 50–950 ramp

primary

#213A71

secondary

#A58849

accent

#B04ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #213A71

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

Preview Lab → · Contrast checker → · Palette generator →