#312779#312779

#312779 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.9% C 0.134 H 282.1°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#312779
RGB	rgb(49, 39, 121)
HSL	hsl(247, 51%, 31%)
HSV	hsv(247, 68%, 47%)
CMYK	cmyk(59.5%, 67.8%, 0%, 52.5%)
CIE-LAB	lab(21.89, 29.41, -45.39)
CIE-LCH	lch(21.89, 54.09, 302.94°)
OKLab	oklab(33.9% 0.028 -0.1305)
OKLCH	oklch(33.9% 0.134 282.1)
XYZ	xyz(5.4423, 3.4841, 18.4712)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312779 #6F7927

analogous

#274679 #312779 #5A2779

triadic

#312779 #793127 #277931

tetradic

#312779 #792746 #6F7927 #27795A

square

#312779 #792746 #6F7927 #27795A

split-complementary

#312779 #795A27 #467927

monochromatic

#0C091C #1E184B #312779 #4436A7 #6153C8

Accessibility & contrast

On white

12.38

#312779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#312779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312779

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312779	#FFFFFF	#000000	##FFFFFF
##312779	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377C

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#093C4C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #312779;
/* rgb */ color: rgb(49, 39, 121);
/* oklch */ color: oklch(33.9% 0.134 282.1);

Tailwind

colors: {
  custom: {
    50: '#7162a0',
    500: '#312779',
    950: '#000000',
  },
}

SCSS

$custom: #312779;
$custom-light: #7162a0;
$custom-dark: #000000;

JSON

{
  "hex": "#312779",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 121
  },
  "hsl": {
    "h": 247.317,
    "s": 51.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33903,
    "c": 0.13353,
    "h": 282.1
  },
  "luminance": 0.03484
}

Semantic roles & 50–950 ramp

primary

#312779

secondary

#A0AB51

accent

#DB4DC9

background

#F7F5FA

surface

#EDEAF3

border

#C8C6CD

text

#08050F

muted

#7B797F

Preview Lab

Preview with #312779

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

Preview Lab → · Contrast checker → · Palette generator →