#313C71#313C71

#313C71 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.091 H 272.5°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#313C71
RGB	rgb(49, 60, 113)
HSL	hsl(230, 40%, 32%)
HSV	hsv(230, 57%, 44%)
CMYK	cmyk(56.6%, 46.9%, 0%, 55.7%)
CIE-LAB	lab(26.95, 12.41, -32.12)
CIE-LCH	lch(26.95, 34.44, 291.13°)
OKLab	oklab(37.49% 0.0039 -0.0914)
OKLCH	oklch(37.49% 0.091 272.5)
XYZ	xyz(5.8622, 5.0765, 16.2905)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C71 #716631

analogous

#315C71 #313C71 #463171

triadic

#313C71 #71313C #3C7131

tetradic

#313C71 #71315C #716631 #317146

square

#313C71 #71315C #716631 #317146

split-complementary

#313C71 #714631 #5C7131

monochromatic

#0C0F1C #1E2546 #313C71 #44539C #6271BB

Accessibility & contrast

On white

10.42

#313C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#313C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C71

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C71	#FFFFFF	#000000	##FFFFFF
##313C71	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254373

Deuteranopia (green-blind)

#1D3D70

Tritanopia (blue-blind)

#114851

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313c71;
/* rgb */ color: rgb(49, 60, 113);
/* oklch */ color: oklch(37.5% 0.091 272.5);

Tailwind

colors: {
  custom: {
    50: '#6e719a',
    500: '#313c71',
    950: '#000000',
  },
}

SCSS

$custom: #313c71;
$custom-light: #6e719a;
$custom-dark: #000000;

JSON

{
  "hex": "#313c71",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 113
  },
  "hsl": {
    "h": 229.688,
    "s": 39.506,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37488,
    "c": 0.09144,
    "h": 272.5
  },
  "luminance": 0.05077
}

Semantic roles & 50–950 ramp

primary

#313C71

secondary

#A2965C

accent

#BB58CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #313C71

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

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