#312DA4#312DA4

#312DA4 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.1% C 0.183 H 275.3°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#312DA4
RGB	rgb(49, 45, 164)
HSL	hsl(242, 57%, 41%)
HSV	hsv(242, 73%, 64%)
CMYK	cmyk(70.1%, 72.6%, 0%, 35.7%)
CIE-LAB	lab(27.32, 40.34, -63.15)
CIE-LCH	lch(27.32, 74.94, 302.57°)
OKLab	oklab(39.06% 0.0168 -0.1825)
OKLCH	oklch(39.06% 0.183 275.3)
XYZ	xyz(8.9036, 5.2092, 35.6510)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DA4 #A0A42D

analogous

#2D64A4 #312DA4 #6C2DA4

triadic

#312DA4 #A4312D #2DA431

tetradic

#312DA4 #A42D64 #A0A42D #2DA46C

square

#312DA4 #A42D64 #A0A42D #2DA46C

split-complementary

#312DA4 #A46C2D #64A42D

monochromatic

#141344 #232074 #312DA4 #4743CB #7673D9

Accessibility & contrast

On white

10.28

#312DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#312DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DA4

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DA4	#FFFFFF	#000000	##FFFFFF
##312DA4	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A8

Deuteranopia (green-blind)

#003BA2

Tritanopia (blue-blind)

#004E65

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312da4;
/* rgb */ color: rgb(49, 45, 164);
/* oklch */ color: oklch(39.1% 0.183 275.3);

Tailwind

colors: {
  custom: {
    50: '#7a67c0',
    500: '#312da4',
    950: '#000000',
  },
}

SCSS

$custom: #312da4;
$custom-light: #7a67c0;
$custom-dark: #000000;

JSON

{
  "hex": "#312da4",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 164
  },
  "hsl": {
    "h": 242.017,
    "s": 56.938,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39062,
    "c": 0.18331,
    "h": 275.3
  },
  "luminance": 0.0521
}

Semantic roles & 50–950 ramp

primary

#312DA4

secondary

#BDC06D

accent

#E048DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #312DA4

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

Preview Lab → · Contrast checker → · Palette generator →