#312FA4#312FA4

#312FA4 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.4% C 0.181 H 274.9°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#312FA4
RGB	rgb(49, 47, 164)
HSL	hsl(241, 55%, 41%)
HSV	hsv(241, 71%, 64%)
CMYK	cmyk(70.1%, 71.3%, 0%, 35.7%)
CIE-LAB	lab(27.75, 39.16, -62.45)
CIE-LCH	lch(27.75, 73.71, 302.09°)
OKLab	oklab(39.37% 0.0156 -0.1805)
OKLCH	oklch(39.37% 0.181 274.9)
XYZ	xyz(8.9818, 5.3655, 35.6771)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312FA4 #A2A42F

analogous

#2F68A4 #312FA4 #6C2FA4

triadic

#312FA4 #A4312F #2FA431

tetradic

#312FA4 #A42F68 #A2A42F #2FA46C

square

#312FA4 #A42F68 #A2A42F #2FA46C

split-complementary

#312FA4 #A46C2F #68A42F

monochromatic

#151445 #232174 #312FA4 #4846CA #7776D8

Accessibility & contrast

On white

10.13

#312FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#312FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FA4

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312FA4	#FFFFFF	#000000	##FFFFFF
##312FA4	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A8

Deuteranopia (green-blind)

#003CA2

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312fa4;
/* rgb */ color: rgb(49, 47, 164);
/* oklch */ color: oklch(39.4% 0.181 274.9);

Tailwind

colors: {
  custom: {
    50: '#7a69c0',
    500: '#312fa4',
    950: '#000000',
  },
}

SCSS

$custom: #312fa4;
$custom-light: #7a69c0;
$custom-dark: #000000;

JSON

{
  "hex": "#312fa4",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 164
  },
  "hsl": {
    "h": 241.026,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39368,
    "c": 0.18115,
    "h": 274.9
  },
  "luminance": 0.05366
}

Semantic roles & 50–950 ramp

primary

#312FA4

secondary

#BEC06F

accent

#DF49DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #312FA4

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

Preview Lab → · Contrast checker → · Palette generator →