#312EA8#312EA8

#312EA8 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.6% C 0.187 H 274.7°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#312EA8
RGB	rgb(49, 46, 168)
HSL	hsl(241, 57%, 42%)
HSV	hsv(241, 73%, 66%)
CMYK	cmyk(70.8%, 72.6%, 0%, 34.1%)
CIE-LAB	lab(27.93, 41.10, -64.56)
CIE-LCH	lch(27.93, 76.53, 302.48°)
OKLab	oklab(39.62% 0.0155 -0.1866)
OKLCH	oklch(39.62% 0.187 274.7)
XYZ	xyz(9.3092, 5.4332, 37.5963)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312EA8 #A5A82E

analogous

#2E68A8 #312EA8 #6E2EA8

triadic

#312EA8 #A8312E #2EA831

tetradic

#312EA8 #A82E68 #A5A82E #2EA86E

square

#312EA8 #A82E68 #A5A82E #2EA86E

split-complementary

#312EA8 #A86E2E #68A82E

monochromatic

#151448 #232178 #312EA8 #4A47CD #7977DA

Accessibility & contrast

On white

10.06

#312EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#312EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312EA8

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312EA8	#FFFFFF	#000000	##FFFFFF
##312EA8	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AC

Deuteranopia (green-blind)

#003CA6

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312ea8;
/* rgb */ color: rgb(49, 46, 168);
/* oklch */ color: oklch(39.6% 0.187 274.7);

Tailwind

colors: {
  custom: {
    50: '#7b68c3',
    500: '#312ea8',
    950: '#000000',
  },
}

SCSS

$custom: #312ea8;
$custom-light: #7b68c3;
$custom-dark: #000000;

JSON

{
  "hex": "#312ea8",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 168
  },
  "hsl": {
    "h": 241.475,
    "s": 57.009,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39619,
    "c": 0.18729,
    "h": 274.7
  },
  "luminance": 0.05434
}

Semantic roles & 50–950 ramp

primary

#312EA8

secondary

#C0C270

accent

#E048DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312EA8

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

Preview Lab → · Contrast checker → · Palette generator →