#213F71#213F71

#213F71 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.2% C 0.093 H 260.0°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#213F71
RGB	rgb(33, 63, 113)
HSL	hsl(218, 55%, 29%)
HSV	hsv(218, 71%, 44%)
CMYK	cmyk(70.8%, 44.2%, 0%, 55.7%)
CIE-LAB	lab(26.93, 6.97, -32.20)
CIE-LCH	lch(26.93, 32.95, 282.21°)
OKLab	oklab(37.22% -0.0161 -0.0919)
OKLCH	oklch(37.22% 0.093 260)
XYZ	xyz(5.3843, 5.0701, 16.3144)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F71 #715321

analogous

#216771 #213F71 #2B2171

triadic

#213F71 #71213F #3F7121

tetradic

#213F71 #712167 #715321 #21712B

square

#213F71 #712167 #715321 #21712B

split-complementary

#213F71 #712B21 #677121

monochromatic

#070D18 #132542 #213F71 #2F59A0 #4476C8

Accessibility & contrast

On white

10.43

#213F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#213F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F71

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F71	#FFFFFF	#000000	##FFFFFF
##213F71	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284473

Deuteranopia (green-blind)

#1B3C70

Tritanopia (blue-blind)

#004B52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #213f71;
/* rgb */ color: rgb(33, 63, 113);
/* oklch */ color: oklch(37.2% 0.093 260.0);

Tailwind

colors: {
  custom: {
    50: '#66739a',
    500: '#213f71',
    950: '#000000',
  },
}

SCSS

$custom: #213f71;
$custom-light: #66739a;
$custom-dark: #000000;

JSON

{
  "hex": "#213f71",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 113
  },
  "hsl": {
    "h": 217.5,
    "s": 54.795,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37224,
    "c": 0.09332,
    "h": 260
  },
  "luminance": 0.05071
}

Semantic roles & 50–950 ramp

primary

#213F71

secondary

#A58249

accent

#A64ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #213F71

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

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