#312EA7#312EA7

#312EA7 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.186 H 274.8°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#312EA7
RGB	rgb(49, 46, 167)
HSL	hsl(241, 57%, 42%)
HSV	hsv(241, 72%, 65%)
CMYK	cmyk(70.7%, 72.5%, 0%, 34.5%)
CIE-LAB	lab(27.83, 40.77, -64.12)
CIE-LCH	lch(27.83, 75.98, 302.45°)
OKLab	oklab(39.52% 0.0157 -0.1854)
OKLCH	oklch(39.52% 0.186 274.8)
XYZ	xyz(9.2164, 5.3961, 37.1076)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312EA7 #A4A72E

analogous

#2E67A7 #312EA7 #6E2EA7

triadic

#312EA7 #A7312E #2EA731

tetradic

#312EA7 #A72E67 #A4A72E #2EA76E

square

#312EA7 #A72E67 #A4A72E #2EA76E

split-complementary

#312EA7 #A76E2E #67A72E

monochromatic

#151447 #232177 #312EA7 #4946CC #7976D9

Accessibility & contrast

On white

10.10

#312EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#312EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312EA7

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312EA7	#FFFFFF	#000000	##FFFFFF
##312EA7	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AB

Deuteranopia (green-blind)

#003CA5

Tritanopia (blue-blind)

#005067

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312ea7;
/* rgb */ color: rgb(49, 46, 167);
/* oklch */ color: oklch(39.5% 0.186 274.8);

Tailwind

colors: {
  custom: {
    50: '#7b68c2',
    500: '#312ea7',
    950: '#000000',
  },
}

SCSS

$custom: #312ea7;
$custom-light: #7b68c2;
$custom-dark: #000000;

JSON

{
  "hex": "#312ea7",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 167
  },
  "hsl": {
    "h": 241.488,
    "s": 56.808,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39518,
    "c": 0.18603,
    "h": 274.8
  },
  "luminance": 0.05397
}

Semantic roles & 50–950 ramp

primary

#312EA7

secondary

#BFC170

accent

#E048DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312EA7

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

Preview Lab → · Contrast checker → · Palette generator →