#313D77#313D77

#313D77 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.099 H 272.1°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#313D77
RGB	rgb(49, 61, 119)
HSL	hsl(230, 42%, 33%)
HSV	hsv(230, 59%, 47%)
CMYK	cmyk(58.8%, 48.7%, 0%, 53.3%)
CIE-LAB	lab(27.63, 13.89, -34.83)
CIE-LCH	lch(27.63, 37.50, 291.74°)
OKLab	oklab(38.13% 0.0037 -0.0993)
OKLCH	oklch(38.13% 0.099 272.1)
XYZ	xyz(6.2640, 5.3219, 18.1463)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D77 #776B31

analogous

#316077 #313D77 #483177

triadic

#313D77 #77313D #3D7731

tetradic

#313D77 #773160 #776B31 #317748

square

#313D77 #773160 #776B31 #317748

split-complementary

#313D77 #774831 #607731

monochromatic

#0D1120 #1F274C #313D77 #4353A2 #6373BF

Accessibility & contrast

On white

10.17

#313D77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#313D77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D77

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D77	#FFFFFF	#000000	##FFFFFF
##313D77	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224479

Deuteranopia (green-blind)

#183E76

Tritanopia (blue-blind)

#074A54

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313d77;
/* rgb */ color: rgb(49, 61, 119);
/* oklch */ color: oklch(38.1% 0.099 272.1);

Tailwind

colors: {
  custom: {
    50: '#6f729f',
    500: '#313d77',
    950: '#000000',
  },
}

SCSS

$custom: #313d77;
$custom-light: #6f729f;
$custom-dark: #000000;

JSON

{
  "hex": "#313d77",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 119
  },
  "hsl": {
    "h": 229.714,
    "s": 41.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38132,
    "c": 0.09939,
    "h": 272.1
  },
  "luminance": 0.05322
}

Semantic roles & 50–950 ramp

primary

#313D77

secondary

#A69A5D

accent

#BC56D1

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #313D77

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

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