#313F84#313F84

#313F84 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.5% C 0.116 H 271.5°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#313F84
RGB	rgb(49, 63, 132)
HSL	hsl(230, 46%, 35%)
HSV	hsv(230, 63%, 52%)
CMYK	cmyk(62.9%, 52.3%, 0%, 48.2%)
CIE-LAB	lab(29.09, 17.28, -40.64)
CIE-LCH	lch(29.09, 44.16, 293.04°)
OKLab	oklab(39.52% 0.003 -0.1164)
OKLCH	oklch(39.52% 0.116 271.5)
XYZ	xyz(7.2076, 5.8733, 22.5792)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F84 #847631

analogous

#316884 #313F84 #4D3184

triadic

#313F84 #84313F #3F8431

tetradic

#313F84 #843168 #847631 #31844D

square

#313F84 #843168 #847631 #31844D

split-complementary

#313F84 #844D31 #688431

monochromatic

#10142B #202A57 #313F84 #4254B1 #6878C7

Accessibility & contrast

On white

9.66

#313F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#313F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F84

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F84	#FFFFFF	#000000	##FFFFFF
##313F84	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194886

Deuteranopia (green-blind)

#054183

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313f84;
/* rgb */ color: rgb(49, 63, 132);
/* oklch */ color: oklch(39.5% 0.116 271.5);

Tailwind

colors: {
  custom: {
    50: '#7273a8',
    500: '#313f84',
    950: '#000000',
  },
}

SCSS

$custom: #313f84;
$custom-light: #7273a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313f84",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 132
  },
  "hsl": {
    "h": 229.88,
    "s": 45.856,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39522,
    "c": 0.1164,
    "h": 271.5
  },
  "luminance": 0.05874
}

Semantic roles & 50–950 ramp

primary

#313F84

secondary

#AEA262

accent

#BF52D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #313F84

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

Preview Lab → · Contrast checker → · Palette generator →