#313166#313166

#313166 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.3% C 0.091 H 280.5°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#313166
RGB	rgb(49, 49, 102)
HSL	hsl(240, 35%, 30%)
HSV	hsv(240, 52%, 40%)
CMYK	cmyk(52%, 52%, 0%, 60%)
CIE-LAB	lab(23.03, 16.11, -31.32)
CIE-LCH	lch(23.03, 35.22, 297.21°)
OKLab	oklab(34.28% 0.0165 -0.0891)
OKLCH	oklch(34.28% 0.091 280.5)
XYZ	xyz(4.7625, 3.8086, 13.0520)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313166 #666631

analogous

#314C66 #313166 #4C3166

triadic

#313166 #663131 #316631

tetradic

#313166 #66314C #666631 #31664C

square

#313166 #66314C #666631 #31664C

split-complementary

#313166 #664C31 #4C6631

monochromatic

#0A0A15 #1D1D3D #313166 #45458F #5F5FB2

Accessibility & contrast

On white

11.92

#313166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#313166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313166

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313166	#FFFFFF	#000000	##FFFFFF
##313166	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193968

Deuteranopia (green-blind)

#153565

Tritanopia (blue-blind)

#1D3C46

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #313166;
/* rgb */ color: rgb(49, 49, 102);
/* oklch */ color: oklch(34.3% 0.091 280.5);

Tailwind

colors: {
  custom: {
    50: '#6d6992',
    500: '#313166',
    950: '#000000',
  },
}

SCSS

$custom: #313166;
$custom-light: #6d6992;
$custom-dark: #000000;

JSON

{
  "hex": "#313166",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 102
  },
  "hsl": {
    "h": 240,
    "s": 35.099,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34278,
    "c": 0.09064,
    "h": 280.5
  },
  "luminance": 0.03809
}

Semantic roles & 50–950 ramp

primary

#313166

secondary

#97975C

accent

#CB5DCB

background

#F6F6F9

surface

#ECEBF1

border

#C7C6CB

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #313166

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

Preview Lab → · Contrast checker → · Palette generator →