#312D97#312D97

#312D97 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.8% C 0.167 H 276.5°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#312D97
RGB	rgb(49, 45, 151)
HSL	hsl(242, 54%, 38%)
HSV	hsv(242, 70%, 59%)
CMYK	cmyk(67.5%, 70.2%, 0%, 40.8%)
CIE-LAB	lab(26.05, 35.93, -57.33)
CIE-LCH	lch(26.05, 67.65, 302.08°)
OKLab	oklab(37.76% 0.0189 -0.1655)
OKLCH	oklch(37.76% 0.167 276.5)
XYZ	xyz(7.7891, 4.7634, 29.7811)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D97 #93972D

analogous

#2D5E97 #312D97 #662D97

triadic

#312D97 #97312D #2D9731

tetradic

#312D97 #972D5E #93972D #2D9766

square

#312D97 #972D5E #93972D #2D9766

split-complementary

#312D97 #97662D #5E972D

monochromatic

#121139 #221F68 #312D97 #413CC5 #6F6BD3

Accessibility & contrast

On white

10.75

#312D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#312D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D97

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D97	#FFFFFF	#000000	##FFFFFF
##312D97	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429A

Deuteranopia (green-blind)

#003995

Tritanopia (blue-blind)

#004A5E

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #312d97;
/* rgb */ color: rgb(49, 45, 151);
/* oklch */ color: oklch(37.8% 0.167 276.5);

Tailwind

colors: {
  custom: {
    50: '#7767b7',
    500: '#312d97',
    950: '#000000',
  },
}

SCSS

$custom: #312d97;
$custom-light: #7767b7;
$custom-dark: #000000;

JSON

{
  "hex": "#312d97",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 151
  },
  "hsl": {
    "h": 242.264,
    "s": 54.082,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37764,
    "c": 0.16658,
    "h": 276.5
  },
  "luminance": 0.04764
}

Semantic roles & 50–950 ramp

primary

#312D97

secondary

#B7BA66

accent

#DD4AD8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #312D97

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

Preview Lab → · Contrast checker → · Palette generator →