#313D90#313D90

#313D90 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.137 H 272.5°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#313D90
RGB	rgb(49, 61, 144)
HSL	hsl(232, 49%, 38%)
HSV	hsv(232, 66%, 56%)
CMYK	cmyk(66%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(29.42, 23.05, -47.52)
CIE-LCH	lch(29.42, 52.82, 295.87°)
OKLab	oklab(40.05% 0.0059 -0.1366)
OKLCH	oklch(40.05% 0.137 272.5)
XYZ	xyz(7.9677, 6.0034, 27.1190)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D90 #908431

analogous

#316C90 #313D90 #543190

triadic

#313D90 #90313D #3D9031

tetradic

#313D90 #90316C #908431 #319054

square

#313D90 #90316C #908431 #319054

split-complementary

#313D90 #905431 #6C9031

monochromatic

#121635 #212A62 #313D90 #4150BE #6E7ACE

Accessibility & contrast

On white

9.54

#313D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#313D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D90

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D90	#FFFFFF	#000000	##FFFFFF
##313D90	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313d90;
/* rgb */ color: rgb(49, 61, 144);
/* oklch */ color: oklch(40.1% 0.137 272.5);

Tailwind

colors: {
  custom: {
    50: '#7472b1',
    500: '#313d90',
    950: '#000000',
  },
}

SCSS

$custom: #313d90;
$custom-light: #7472b1;
$custom-dark: #000000;

JSON

{
  "hex": "#313d90",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 232.421,
    "s": 49.223,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40051,
    "c": 0.13677,
    "h": 272.5
  },
  "luminance": 0.06004
}

Semantic roles & 50–950 ramp

primary

#313D90

secondary

#B5AB68

accent

#C74FD9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313D90

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

Preview Lab → · Contrast checker → · Palette generator →