#312FA7#312FA7

#312FA7 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.7% C 0.185 H 274.7°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#312FA7
RGB	rgb(49, 47, 167)
HSL	hsl(241, 56%, 42%)
HSV	hsv(241, 72%, 65%)
CMYK	cmyk(70.7%, 71.9%, 0%, 34.5%)
CIE-LAB	lab(28.05, 40.18, -63.77)
CIE-LCH	lch(28.05, 75.37, 302.21°)
OKLab	oklab(39.67% 0.0151 -0.1844)
OKLCH	oklch(39.67% 0.185 274.7)
XYZ	xyz(9.2559, 5.4751, 37.1207)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FA7 #A5A72F

analogous

#2F69A7 #312FA7 #6D2FA7

triadic

#312FA7 #A7312F #2FA731

tetradic

#312FA7 #A72F69 #A5A72F #2FA76D

square

#312FA7 #A72F69 #A5A72F #2FA76D

split-complementary

#312FA7 #A76D2F #69A72F

monochromatic

#151447 #232277 #312FA7 #4A48CB #7978D9

Accessibility & contrast

On white

10.02

#312FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#312FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FA7

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FA7	#FFFFFF	#000000	##FFFFFF
##312FA7	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AB

Deuteranopia (green-blind)

#003DA5

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312fa7;
/* rgb */ color: rgb(49, 47, 167);
/* oklch */ color: oklch(39.7% 0.185 274.7);

Tailwind

colors: {
  custom: {
    50: '#7a69c2',
    500: '#312fa7',
    950: '#000000',
  },
}

SCSS

$custom: #312fa7;
$custom-light: #7a69c2;
$custom-dark: #000000;

JSON

{
  "hex": "#312fa7",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 167
  },
  "hsl": {
    "h": 241,
    "s": 56.075,
    "l": 41.961
  },
  "oklch": {
    "l": 0.3967,
    "c": 0.18496,
    "h": 274.7
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#312FA7

secondary

#C0C171

accent

#DF48DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312FA7

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

Preview Lab → · Contrast checker → · Palette generator →