#312EA1#312EA1

#312EA1 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.178 H 275.4°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#312EA1
RGB	rgb(49, 46, 161)
HSL	hsl(242, 56%, 41%)
HSV	hsv(242, 71%, 63%)
CMYK	cmyk(69.6%, 71.4%, 0%, 36.9%)
CIE-LAB	lab(27.24, 38.74, -61.47)
CIE-LCH	lch(27.24, 72.66, 302.22°)
OKLab	oklab(38.91% 0.0167 -0.1776)
OKLCH	oklch(38.91% 0.178 275.4)
XYZ	xyz(8.6745, 5.1794, 34.2539)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312EA1 #9EA12E

analogous

#2E64A1 #312EA1 #6A2EA1

triadic

#312EA1 #A1312E #2EA131

tetradic

#312EA1 #A12E64 #9EA12E #2EA16A

square

#312EA1 #A12E64 #9EA12E #2EA16A

split-complementary

#312EA1 #A16A2E #64A12E

monochromatic

#141342 #232071 #312EA1 #4643C9 #7573D7

Accessibility & contrast

On white

10.31

#312EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#312EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312EA1

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312EA1	#FFFFFF	#000000	##FFFFFF
##312EA1	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A4

Deuteranopia (green-blind)

#003B9F

Tritanopia (blue-blind)

#004E64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #312ea1;
/* rgb */ color: rgb(49, 46, 161);
/* oklch */ color: oklch(38.9% 0.178 275.4);

Tailwind

colors: {
  custom: {
    50: '#7968be',
    500: '#312ea1',
    950: '#000000',
  },
}

SCSS

$custom: #312ea1;
$custom-light: #7968be;
$custom-dark: #000000;

JSON

{
  "hex": "#312ea1",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 161
  },
  "hsl": {
    "h": 241.565,
    "s": 55.556,
    "l": 40.588
  },
  "oklch": {
    "l": 0.38912,
    "c": 0.17841,
    "h": 275.4
  },
  "luminance": 0.0518
}

Semantic roles & 50–950 ramp

primary

#312EA1

secondary

#BCBE6C

accent

#DF49DB

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312EA1

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

Preview Lab → · Contrast checker → · Palette generator →