#312DA3#312DA3

#312DA3 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.0% C 0.182 H 275.3°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#312DA3
RGB	rgb(49, 45, 163)
HSL	hsl(242, 57%, 41%)
HSV	hsv(242, 72%, 64%)
CMYK	cmyk(69.9%, 72.4%, 0%, 36.1%)
CIE-LAB	lab(27.22, 40.01, -62.71)
CIE-LCH	lch(27.22, 74.39, 302.54°)
OKLab	oklab(38.96% 0.017 -0.1812)
OKLCH	oklch(38.96% 0.182 275.3)
XYZ	xyz(8.8137, 5.1733, 35.1773)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DA3 #9FA32D

analogous

#2D64A3 #312DA3 #6C2DA3

triadic

#312DA3 #A3312D #2DA331

tetradic

#312DA3 #A32D64 #9FA32D #2DA36C

square

#312DA3 #A32D64 #9FA32D #2DA36C

split-complementary

#312DA3 #A36C2D #64A32D

monochromatic

#141343 #232073 #312DA3 #4742CB #7672D8

Accessibility & contrast

On white

10.32

#312DA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#312DA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DA3

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DA3	#FFFFFF	#000000	##FFFFFF
##312DA3	1.00	10.32	2.03	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A7

Deuteranopia (green-blind)

#003BA1

Tritanopia (blue-blind)

#004E65

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #312da3;
/* rgb */ color: rgb(49, 45, 163);
/* oklch */ color: oklch(39.0% 0.182 275.3);

Tailwind

colors: {
  custom: {
    50: '#7a67bf',
    500: '#312da3',
    950: '#000000',
  },
}

SCSS

$custom: #312da3;
$custom-light: #7a67bf;
$custom-dark: #000000;

JSON

{
  "hex": "#312da3",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 163
  },
  "hsl": {
    "h": 242.034,
    "s": 56.731,
    "l": 40.784
  },
  "oklch": {
    "l": 0.3896,
    "c": 0.18204,
    "h": 275.3
  },
  "luminance": 0.05174
}

Semantic roles & 50–950 ramp

primary

#312DA3

secondary

#BDC06C

accent

#E048DB

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #312DA3

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

Preview Lab → · Contrast checker → · Palette generator →