#331EA6#331EA6

#331EA6 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.5% C 0.199 H 277.7°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#331EA6
RGB	rgb(51, 30, 166)
HSL	hsl(249, 69%, 38%)
HSV	hsv(249, 82%, 65%)
CMYK	cmyk(69.3%, 81.9%, 0%, 34.9%)
CIE-LAB	lab(24.90, 49.11, -68.35)
CIE-LCH	lch(24.90, 84.17, 305.70°)
OKLab	oklab(37.46% 0.0268 -0.1975)
OKLCH	oklch(37.46% 0.199 277.7)
XYZ	xyz(8.7102, 4.3848, 36.4563)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331EA6 #91A61E

analogous

#1E4DA6 #331EA6 #771EA6

triadic

#331EA6 #A6331E #1EA633

tetradic

#331EA6 #A61E4D #91A61E #1EA677

square

#331EA6 #A61E4D #91A61E #1EA677

split-complementary

#331EA6 #A6771E #4DA61E

monochromatic

#130B3E #231572 #331EA6 #4429D8 #715DE2

Accessibility & contrast

On white

11.19

#331EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#331EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331EA6

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331EA6	#FFFFFF	#000000	##FFFFFF
##331EA6	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AA

Deuteranopia (green-blind)

#0035A4

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #331ea6;
/* rgb */ color: rgb(51, 30, 166);
/* oklch */ color: oklch(37.5% 0.199 277.7);

Tailwind

colors: {
  custom: {
    50: '#7d5fc2',
    500: '#331ea6',
    950: '#000000',
  },
}

SCSS

$custom: #331ea6;
$custom-light: #7d5fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#331ea6",
  "rgb": {
    "r": 51,
    "g": 30,
    "b": 166
  },
  "hsl": {
    "h": 249.265,
    "s": 69.388,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37463,
    "c": 0.19928,
    "h": 277.7
  },
  "luminance": 0.04386
}

Semantic roles & 50–950 ramp

primary

#331EA6

secondary

#B5C65A

accent

#EC3CD1

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #331EA6

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

Preview Lab → · Contrast checker → · Palette generator →