#313A82#313A82

#313A82 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.120 H 273.9°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#313A82
RGB	rgb(49, 58, 130)
HSL	hsl(233, 45%, 35%)
HSV	hsv(233, 62%, 51%)
CMYK	cmyk(62.3%, 55.4%, 0%, 49%)
CIE-LAB	lab(27.55, 19.95, -41.88)
CIE-LCH	lch(27.55, 46.39, 295.47°)
OKLab	oklab(38.31% 0.0082 -0.1201)
OKLCH	oklch(38.31% 0.12 273.9)
XYZ	xyz(6.8076, 5.2902, 21.7771)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A82 #827931

analogous

#316382 #313A82 #503182

triadic

#313A82 #82313A #3A8231

tetradic

#313A82 #823163 #827931 #318250

square

#313A82 #823163 #827931 #318250

split-complementary

#313A82 #825031 #638231

monochromatic

#0F1229 #202656 #313A82 #424EAE #6872C6

Accessibility & contrast

On white

10.20

#313A82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#313A82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A82

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A82	#FFFFFF	#000000	##FFFFFF
##313A82	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4585

Deuteranopia (green-blind)

#003E81

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313a82;
/* rgb */ color: rgb(49, 58, 130);
/* oklch */ color: oklch(38.3% 0.120 273.9);

Tailwind

colors: {
  custom: {
    50: '#7270a7',
    500: '#313a82',
    950: '#000000',
  },
}

SCSS

$custom: #313a82;
$custom-light: #7270a7;
$custom-dark: #000000;

JSON

{
  "hex": "#313a82",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 130
  },
  "hsl": {
    "h": 233.333,
    "s": 45.251,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38312,
    "c": 0.12036,
    "h": 273.9
  },
  "luminance": 0.05291
}

Semantic roles & 50–950 ramp

primary

#313A82

secondary

#ADA562

accent

#C653D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313A82

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

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