#31209C#31209C

#31209C is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.4% C 0.186 H 278.0°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#31209C
RGB	rgb(49, 32, 156)
HSL	hsl(248, 66%, 37%)
HSV	hsv(248, 79%, 61%)
CMYK	cmyk(68.6%, 79.5%, 0%, 38.8%)
CIE-LAB	lab(23.95, 44.90, -63.84)
CIE-LCH	lch(23.95, 78.05, 305.12°)
OKLab	oklab(36.43% 0.0259 -0.1844)
OKLCH	oklch(36.43% 0.186 278)
XYZ	xyz(7.7819, 4.0856, 31.8245)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31209C #8B9C20

analogous

#204D9C #31209C #6F209C

triadic

#31209C #9C3120 #209C31

tetradic

#31209C #9C204D #8B9C20 #209C6F

square

#31209C #9C204D #8B9C20 #209C6F

split-complementary

#31209C #9C6F20 #4D9C20

monochromatic

#110B36 #211669 #31209C #412ACF #6B59DD

Accessibility & contrast

On white

11.56

#31209C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#31209C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31209C

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31209C	#FFFFFF	#000000	##FFFFFF
##31209C	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9F

Deuteranopia (green-blind)

#00349A

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #31209c;
/* rgb */ color: rgb(49, 32, 156);
/* oklch */ color: oklch(36.4% 0.186 278.0);

Tailwind

colors: {
  custom: {
    50: '#795fba',
    500: '#31209c',
    950: '#000000',
  },
}

SCSS

$custom: #31209c;
$custom-light: #795fba;
$custom-dark: #000000;

JSON

{
  "hex": "#31209c",
  "rgb": {
    "r": 49,
    "g": 32,
    "b": 156
  },
  "hsl": {
    "h": 248.226,
    "s": 65.957,
    "l": 36.863
  },
  "oklch": {
    "l": 0.36431,
    "c": 0.18624,
    "h": 278
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#31209C

secondary

#B2C157

accent

#E93FD2

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31209C

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

Preview Lab → · Contrast checker → · Palette generator →