#331EA9#331EA9

#331EA9 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.8% C 0.203 H 277.3°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#331EA9
RGB	rgb(51, 30, 169)
HSL	hsl(249, 70%, 39%)
HSV	hsv(249, 82%, 66%)
CMYK	cmyk(69.8%, 82.2%, 0%, 33.7%)
CIE-LAB	lab(25.25, 50.01, -69.60)
CIE-LCH	lch(25.25, 85.70, 305.70°)
OKLab	oklab(37.8% 0.0259 -0.2011)
OKLCH	oklch(37.8% 0.203 277.3)
XYZ	xyz(8.9886, 4.4961, 37.9226)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331EA9 #94A91E

analogous

#1E4FA9 #331EA9 #791EA9

triadic

#331EA9 #A9331E #1EA933

tetradic

#331EA9 #A91E4F #94A91E #1EA979

square

#331EA9 #A91E4F #94A91E #1EA979

split-complementary

#331EA9 #A9791E #4FA91E

monochromatic

#140C41 #231575 #331EA9 #452BD9 #735FE3

Accessibility & contrast

On white

11.06

#331EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#331EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331EA9

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331EA9	#FFFFFF	#000000	##FFFFFF
##331EA9	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AD

Deuteranopia (green-blind)

#0036A7

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #331ea9;
/* rgb */ color: rgb(51, 30, 169);
/* oklch */ color: oklch(37.8% 0.203 277.3);

Tailwind

colors: {
  custom: {
    50: '#7d5fc4',
    500: '#331ea9',
    950: '#000000',
  },
}

SCSS

$custom: #331ea9;
$custom-light: #7d5fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#331ea9",
  "rgb": {
    "r": 51,
    "g": 30,
    "b": 169
  },
  "hsl": {
    "h": 249.065,
    "s": 69.849,
    "l": 39.02
  },
  "oklch": {
    "l": 0.37801,
    "c": 0.20275,
    "h": 277.3
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#331EA9

secondary

#B7C75C

accent

#ED3BD2

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #331EA9

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

Preview Lab → · Contrast checker → · Palette generator →