#312DA2#312DA2

#312DA2 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.9% C 0.181 H 275.4°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#312DA2
RGB	rgb(49, 45, 162)
HSL	hsl(242, 57%, 41%)
HSV	hsv(242, 72%, 64%)
CMYK	cmyk(69.8%, 72.2%, 0%, 36.5%)
CIE-LAB	lab(27.12, 39.67, -62.27)
CIE-LCH	lch(27.12, 73.83, 302.50°)
OKLab	oklab(38.86% 0.0171 -0.18)
OKLCH	oklch(38.86% 0.181 275.4)
XYZ	xyz(8.7244, 5.1376, 34.7073)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DA2 #9EA22D

analogous

#2D63A2 #312DA2 #6B2DA2

triadic

#312DA2 #A2312D #2DA231

tetradic

#312DA2 #A22D63 #9EA22D #2DA26B

square

#312DA2 #A22D63 #9EA22D #2DA26B

split-complementary

#312DA2 #A26B2D #63A22D

monochromatic

#141242 #232072 #312DA2 #4642CA #7572D8

Accessibility & contrast

On white

10.36

#312DA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#312DA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DA2

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DA2	#FFFFFF	#000000	##FFFFFF
##312DA2	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A5

Deuteranopia (green-blind)

#003BA0

Tritanopia (blue-blind)

#004E64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #312da2;
/* rgb */ color: rgb(49, 45, 162);
/* oklch */ color: oklch(38.9% 0.181 275.4);

Tailwind

colors: {
  custom: {
    50: '#7a67bf',
    500: '#312da2',
    950: '#000000',
  },
}

SCSS

$custom: #312da2;
$custom-light: #7a67bf;
$custom-dark: #000000;

JSON

{
  "hex": "#312da2",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 162
  },
  "hsl": {
    "h": 242.051,
    "s": 56.522,
    "l": 40.588
  },
  "oklch": {
    "l": 0.38859,
    "c": 0.18077,
    "h": 275.4
  },
  "luminance": 0.05138
}

Semantic roles & 50–950 ramp

primary

#312DA2

secondary

#BCBF6C

accent

#E048DB

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312DA2

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

Preview Lab → · Contrast checker → · Palette generator →