#313D82#313D82

#313D82 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.9% C 0.116 H 272.5°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#313D82
RGB	rgb(49, 61, 130)
HSL	hsl(231, 45%, 35%)
HSV	hsv(231, 62%, 51%)
CMYK	cmyk(62.3%, 53.1%, 0%, 49%)
CIE-LAB	lab(28.38, 17.91, -40.53)
CIE-LCH	lch(28.38, 44.31, 293.83°)
OKLab	oklab(38.94% 0.005 -0.1161)
OKLCH	oklch(38.94% 0.116 272.5)
XYZ	xyz(6.9633, 5.6016, 21.8290)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D82 #827631

analogous

#316582 #313D82 #4D3182

triadic

#313D82 #82313D #3D8231

tetradic

#313D82 #823165 #827631 #31824D

square

#313D82 #823165 #827631 #31824D

split-complementary

#313D82 #824D31 #658231

monochromatic

#0F1329 #202856 #313D82 #4252AE #6875C6

Accessibility & contrast

On white

9.90

#313D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#313D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D82

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D82	#FFFFFF	#000000	##FFFFFF
##313D82	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164784

Deuteranopia (green-blind)

#024081

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313d82;
/* rgb */ color: rgb(49, 61, 130);
/* oklch */ color: oklch(38.9% 0.116 272.5);

Tailwind

colors: {
  custom: {
    50: '#7172a7',
    500: '#313d82',
    950: '#000000',
  },
}

SCSS

$custom: #313d82;
$custom-light: #7172a7;
$custom-dark: #000000;

JSON

{
  "hex": "#313d82",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 130
  },
  "hsl": {
    "h": 231.111,
    "s": 45.251,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38943,
    "c": 0.11618,
    "h": 272.5
  },
  "luminance": 0.05602
}

Semantic roles & 50–950 ramp

primary

#313D82

secondary

#ADA262

accent

#C253D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313D82

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

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