#313CA0#313CA0

#313CA0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.2% C 0.161 H 272.4°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#313CA0
RGB	rgb(49, 60, 160)
HSL	hsl(234, 53%, 41%)
HSV	hsv(234, 69%, 63%)
CMYK	cmyk(69.4%, 62.5%, 0%, 37.3%)
CIE-LAB	lab(30.45, 29.56, -55.60)
CIE-LCH	lch(30.45, 62.97, 297.99°)
OKLab	oklab(41.22% 0.0067 -0.1604)
OKLCH	oklch(41.22% 0.161 272.4)
XYZ	xyz(9.2255, 6.4219, 34.0043)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313CA0 #A09531

analogous

#3173A0 #313CA0 #5D31A0

triadic

#313CA0 #A0313C #3CA031

tetradic

#313CA0 #A03173 #A09531 #31A05D

square

#313CA0 #A03173 #A09531 #31A05D

split-complementary

#313CA0 #A05D31 #73A031

monochromatic

#141942 #232A71 #313CA0 #4754C7 #7680D5

Accessibility & contrast

On white

9.19

#313CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#313CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CA0

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CA0	#FFFFFF	#000000	##FFFFFF
##313CA0	1.00	9.19	2.28	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00439E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313ca0;
/* rgb */ color: rgb(49, 60, 160);
/* oklch */ color: oklch(41.2% 0.161 272.4);

Tailwind

colors: {
  custom: {
    50: '#7871bd',
    500: '#313ca0',
    950: '#000000',
  },
}

SCSS

$custom: #313ca0;
$custom-light: #7871bd;
$custom-dark: #000000;

JSON

{
  "hex": "#313ca0",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 160
  },
  "hsl": {
    "h": 234.054,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41222,
    "c": 0.16053,
    "h": 272.4
  },
  "luminance": 0.06423
}

Semantic roles & 50–950 ramp

primary

#313CA0

secondary

#BDB670

accent

#CE4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313CA0

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

Preview Lab → · Contrast checker → · Palette generator →