#331DA7#331DA7

#331DA7 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.5% C 0.201 H 277.7°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#331DA7
RGB	rgb(51, 29, 167)
HSL	hsl(250, 70%, 38%)
HSV	hsv(250, 83%, 65%)
CMYK	cmyk(69.5%, 82.6%, 0%, 34.5%)
CIE-LAB	lab(24.86, 49.86, -69.03)
CIE-LCH	lch(24.86, 85.15, 305.84°)
OKLab	oklab(37.47% 0.0269 -0.1994)
OKLCH	oklch(37.47% 0.201 277.7)
XYZ	xyz(8.7774, 4.3718, 36.9330)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331DA7 #91A71D

analogous

#1D4CA7 #331DA7 #781DA7

triadic

#331DA7 #A7331D #1DA733

tetradic

#331DA7 #A71D4C #91A71D #1DA778

square

#331DA7 #A71D4C #91A71D #1DA778

split-complementary

#331DA7 #A7781D #4CA71D

monochromatic

#130B3F #231473 #331DA7 #4428DA #715CE3

Accessibility & contrast

On white

11.20

#331DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#331DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331DA7

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331DA7	#FFFFFF	#000000	##FFFFFF
##331DA7	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AB

Deuteranopia (green-blind)

#0035A5

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #331da7;
/* rgb */ color: rgb(51, 29, 167);
/* oklch */ color: oklch(37.5% 0.201 277.7);

Tailwind

colors: {
  custom: {
    50: '#7d5ec3',
    500: '#331da7',
    950: '#000000',
  },
}

SCSS

$custom: #331da7;
$custom-light: #7d5ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#331da7",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 167
  },
  "hsl": {
    "h": 249.565,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37469,
    "c": 0.20122,
    "h": 277.7
  },
  "luminance": 0.04373
}

Semantic roles & 50–950 ramp

primary

#331DA7

secondary

#B5C759

accent

#ED3BD1

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #331DA7

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

Preview Lab → · Contrast checker → · Palette generator →