#313999#313999

#313999 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.155 H 273.5°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#313999
RGB	rgb(49, 57, 153)
HSL	hsl(235, 51%, 40%)
HSV	hsv(235, 68%, 60%)
CMYK	cmyk(68%, 62.7%, 0%, 40%)
CIE-LAB	lab(29.10, 28.99, -53.55)
CIE-LCH	lch(29.10, 60.89, 298.43°)
OKLab	oklab(40.04% 0.0094 -0.1544)
OKLCH	oklch(40.04% 0.155 273.5)
XYZ	xyz(8.4776, 5.8784, 30.8187)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313999 #999131

analogous

#316D99 #313999 #5D3199

triadic

#313999 #993139 #399931

tetradic

#313999 #99316D #999131 #31995D

square

#313999 #99316D #999131 #31995D

split-complementary

#313999 #995D31 #6D9931

monochromatic

#13163C #22286B #313999 #444EC3 #727AD2

Accessibility & contrast

On white

9.65

#313999 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#313999 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313999

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313999	#FFFFFF	#000000	##FFFFFF
##313999	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313999;
/* rgb */ color: rgb(49, 57, 153);
/* oklch */ color: oklch(40.0% 0.155 273.5);

Tailwind

colors: {
  custom: {
    50: '#766fb8',
    500: '#313999',
    950: '#000000',
  },
}

SCSS

$custom: #313999;
$custom-light: #766fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#313999",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 153
  },
  "hsl": {
    "h": 235.385,
    "s": 51.485,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40043,
    "c": 0.15468,
    "h": 273.5
  },
  "luminance": 0.05879
}

Semantic roles & 50–950 ramp

primary

#313999

secondary

#BAB46C

accent

#D04DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #313999

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

Preview Lab → · Contrast checker → · Palette generator →