#312BA2#312BA2

#312BA2 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.6% C 0.183 H 275.8°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#312BA2
RGB	rgb(49, 43, 162)
HSL	hsl(243, 58%, 40%)
HSV	hsv(243, 73%, 64%)
CMYK	cmyk(69.8%, 73.5%, 0%, 36.5%)
CIE-LAB	lab(26.70, 40.84, -62.96)
CIE-LCH	lch(26.70, 75.05, 302.97°)
OKLab	oklab(38.56% 0.0183 -0.182)
OKLCH	oklch(38.56% 0.183 275.8)
XYZ	xyz(8.6499, 4.9886, 34.6825)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BA2 #9CA22B

analogous

#2B61A2 #312BA2 #6C2BA2

triadic

#312BA2 #A2312B #2BA231

tetradic

#312BA2 #A22B61 #9CA22B #2BA26C

square

#312BA2 #A22B61 #9CA22B #2BA26C

split-complementary

#312BA2 #A26C2B #61A22B

monochromatic

#141141 #221E72 #312BA2 #453ECC #746FD9

Accessibility & contrast

On white

10.51

#312BA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#312BA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BA2

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BA2	#FFFFFF	#000000	##FFFFFF
##312BA2	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A6

Deuteranopia (green-blind)

#003AA0

Tritanopia (blue-blind)

#004D64

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #312ba2;
/* rgb */ color: rgb(49, 43, 162);
/* oklch */ color: oklch(38.6% 0.183 275.8);

Tailwind

colors: {
  custom: {
    50: '#7a66bf',
    500: '#312ba2',
    950: '#000000',
  },
}

SCSS

$custom: #312ba2;
$custom-light: #7a66bf;
$custom-dark: #000000;

JSON

{
  "hex": "#312ba2",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 162
  },
  "hsl": {
    "h": 243.025,
    "s": 58.049,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38558,
    "c": 0.1829,
    "h": 275.8
  },
  "luminance": 0.04989
}

Semantic roles & 50–950 ramp

primary

#312BA2

secondary

#BBC069

accent

#E147D9

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #312BA2

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

Preview Lab → · Contrast checker → · Palette generator →