#31239C#31239C

#31239C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.8% C 0.183 H 277.6°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#31239C
RGB	rgb(49, 35, 156)
HSL	hsl(247, 63%, 37%)
HSV	hsv(247, 78%, 61%)
CMYK	cmyk(68.6%, 77.6%, 0%, 38.8%)
CIE-LAB	lab(24.50, 43.35, -62.95)
CIE-LCH	lch(24.50, 76.43, 304.55°)
OKLab	oklab(36.81% 0.0243 -0.1819)
OKLCH	oklch(36.81% 0.183 277.6)
XYZ	xyz(7.8665, 4.2546, 31.8527)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31239C #8E9C23

analogous

#23529C #31239C #6D239C

triadic

#31239C #9C3123 #239C31

tetradic

#31239C #9C2352 #8E9C23 #239C6D

square

#31239C #9C2352 #8E9C23 #239C6D

split-complementary

#31239C #9C6D23 #529C23

monochromatic

#120D38 #21186A #31239C #412ECE #6D5EDB

Accessibility & contrast

On white

11.35

#31239C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#31239C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31239C

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31239C	#FFFFFF	#000000	##FFFFFF
##31239C	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9F

Deuteranopia (green-blind)

#00359A

Tritanopia (blue-blind)

#00475E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31239c;
/* rgb */ color: rgb(49, 35, 156);
/* oklch */ color: oklch(36.8% 0.183 277.6);

Tailwind

colors: {
  custom: {
    50: '#7961ba',
    500: '#31239c',
    950: '#000000',
  },
}

SCSS

$custom: #31239c;
$custom-light: #7961ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31239c",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 156
  },
  "hsl": {
    "h": 246.942,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36811,
    "c": 0.18347,
    "h": 277.6
  },
  "luminance": 0.04255
}

Semantic roles & 50–950 ramp

primary

#31239C

secondary

#B4C05B

accent

#E641D3

background

#F8F5FB

surface

#EFEAF6

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31239C

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

Preview Lab → · Contrast checker → · Palette generator →