#312DA7#312DA7

#312DA7 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.4% C 0.187 H 275.0°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#312DA7
RGB	rgb(49, 45, 167)
HSL	hsl(242, 58%, 42%)
HSV	hsv(242, 73%, 65%)
CMYK	cmyk(70.7%, 73.1%, 0%, 34.5%)
CIE-LAB	lab(27.62, 41.35, -64.47)
CIE-LCH	lch(27.62, 76.59, 302.68°)
OKLab	oklab(39.37% 0.0163 -0.1864)
OKLCH	oklch(39.37% 0.187 275)
XYZ	xyz(9.1778, 5.3189, 37.0947)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DA7 #A3A72D

analogous

#2D66A7 #312DA7 #6E2DA7

triadic

#312DA7 #A7312D #2DA731

tetradic

#312DA7 #A72D66 #A3A72D #2DA76E

square

#312DA7 #A72D66 #A3A72D #2DA76E

split-complementary

#312DA7 #A76E2D #66A72D

monochromatic

#151347 #232077 #312DA7 #4944CD #7875DA

Accessibility & contrast

On white

10.17

#312DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#312DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DA7

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DA7	#FFFFFF	#000000	##FFFFFF
##312DA7	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AB

Deuteranopia (green-blind)

#003CA5

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312da7;
/* rgb */ color: rgb(49, 45, 167);
/* oklch */ color: oklch(39.4% 0.187 275.0);

Tailwind

colors: {
  custom: {
    50: '#7b67c2',
    500: '#312da7',
    950: '#000000',
  },
}

SCSS

$custom: #312da7;
$custom-light: #7b67c2;
$custom-dark: #000000;

JSON

{
  "hex": "#312da7",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 167
  },
  "hsl": {
    "h": 241.967,
    "s": 57.547,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39368,
    "c": 0.18709,
    "h": 275
  },
  "luminance": 0.0532
}

Semantic roles & 50–950 ramp

primary

#312DA7

secondary

#BFC16E

accent

#E147DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DA7

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

Preview Lab → · Contrast checker → · Palette generator →