#312DB8#312DB8

#312DB8 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.1% C 0.208 H 273.6°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#312DB8
RGB	rgb(49, 45, 184)
HSL	hsl(242, 61%, 45%)
HSV	hsv(242, 76%, 72%)
CMYK	cmyk(73.4%, 75.5%, 0%, 27.8%)
CIE-LAB	lab(29.39, 46.95, -71.74)
CIE-LCH	lch(29.39, 85.73, 303.21°)
OKLab	oklab(41.14% 0.013 -0.2075)
OKLCH	oklch(41.14% 0.208 273.6)
XYZ	xyz(10.8539, 5.9893, 45.9221)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DB8 #B4B82D

analogous

#2D6EB8 #312DB8 #772DB8

triadic

#312DB8 #B8312D #2DB831

tetradic

#312DB8 #B82D6E #B4B82D #2DB877

square

#312DB8 #B82D6E #B4B82D #2DB877

split-complementary

#312DB8 #B8772D #6EB82D

monochromatic

#171556 #242187 #312DB8 #524ED4 #8280E0

Accessibility & contrast

On white

9.55

#312DB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#312DB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB8

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB8	#FFFFFF	#000000	##FFFFFF
##312DB8	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBC

Deuteranopia (green-blind)

#003FB6

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312db8;
/* rgb */ color: rgb(49, 45, 184);
/* oklch */ color: oklch(41.1% 0.208 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f68cf',
    500: '#312db8',
    950: '#000000',
  },
}

SCSS

$custom: #312db8;
$custom-light: #7f68cf;
$custom-dark: #000000;

JSON

{
  "hex": "#312db8",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 184
  },
  "hsl": {
    "h": 241.727,
    "s": 60.699,
    "l": 44.902
  },
  "oklch": {
    "l": 0.41142,
    "c": 0.20795,
    "h": 273.6
  },
  "luminance": 0.0599
}

Semantic roles & 50–950 ramp

primary

#312DB8

secondary

#C6C978

accent

#E444DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312DB8

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

Preview Lab → · Contrast checker → · Palette generator →