#312FA0#312FA0

#312FA0 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.0% C 0.176 H 275.3°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#312FA0
RGB	rgb(49, 47, 160)
HSL	hsl(241, 55%, 41%)
HSV	hsv(241, 71%, 63%)
CMYK	cmyk(69.4%, 70.6%, 0%, 37.3%)
CIE-LAB	lab(27.36, 37.79, -60.66)
CIE-LCH	lch(27.36, 71.47, 301.92°)
OKLab	oklab(38.97% 0.0162 -0.1753)
OKLCH	oklch(38.97% 0.176 275.3)
XYZ	xyz(8.6262, 5.2233, 33.8045)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FA0 #9EA02F

analogous

#2F65A0 #312FA0 #692FA0

triadic

#312FA0 #A0312F #2FA031

tetradic

#312FA0 #A02F65 #9EA02F #2FA069

square

#312FA0 #A02F65 #9EA02F #2FA069

split-complementary

#312FA0 #A0692F #65A02F

monochromatic

#141341 #232171 #312FA0 #4644C8 #7573D6

Accessibility & contrast

On white

10.27

#312FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#312FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FA0

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FA0	#FFFFFF	#000000	##FFFFFF
##312FA0	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A3

Deuteranopia (green-blind)

#003B9E

Tritanopia (blue-blind)

#004E64

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312fa0;
/* rgb */ color: rgb(49, 47, 160);
/* oklch */ color: oklch(39.0% 0.176 275.3);

Tailwind

colors: {
  custom: {
    50: '#7968bd',
    500: '#312fa0',
    950: '#000000',
  },
}

SCSS

$custom: #312fa0;
$custom-light: #7968bd;
$custom-dark: #000000;

JSON

{
  "hex": "#312fa0",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 160
  },
  "hsl": {
    "h": 241.062,
    "s": 54.589,
    "l": 40.588
  },
  "oklch": {
    "l": 0.3897,
    "c": 0.17601,
    "h": 275.3
  },
  "luminance": 0.05224
}

Semantic roles & 50–950 ramp

primary

#312FA0

secondary

#BCBE6D

accent

#DE4ADB

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312FA0

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

Preview Lab → · Contrast checker → · Palette generator →