#31239A#31239A

#31239A is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.6% C 0.181 H 277.9°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#31239A
RGB	rgb(49, 35, 154)
HSL	hsl(247, 63%, 37%)
HSV	hsv(247, 77%, 60%)
CMYK	cmyk(68.2%, 77.3%, 0%, 39.6%)
CIE-LAB	lab(24.28, 42.71, -62.08)
CIE-LCH	lch(24.28, 75.35, 304.53°)
OKLab	oklab(36.6% 0.0248 -0.1793)
OKLCH	oklch(36.6% 0.181 277.9)
XYZ	xyz(7.6985, 4.1875, 30.9681)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31239A #8C9A23

analogous

#23519A #31239A #6D239A

triadic

#31239A #9A3123 #239A31

tetradic

#31239A #9A2351 #8C9A23 #239A6D

square

#31239A #9A2351 #8C9A23 #239A6D

split-complementary

#31239A #9A6D23 #519A23

monochromatic

#110C36 #211868 #31239A #412ECC #6C5DDA

Accessibility & contrast

On white

11.43

#31239A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#31239A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31239A

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31239A	#FFFFFF	#000000	##FFFFFF
##31239A	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9D

Deuteranopia (green-blind)

#003598

Tritanopia (blue-blind)

#00465D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31239a;
/* rgb */ color: rgb(49, 35, 154);
/* oklch */ color: oklch(36.6% 0.181 277.9);

Tailwind

colors: {
  custom: {
    50: '#7961b9',
    500: '#31239a',
    950: '#000000',
  },
}

SCSS

$custom: #31239a;
$custom-light: #7961b9;
$custom-dark: #000000;

JSON

{
  "hex": "#31239a",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 154
  },
  "hsl": {
    "h": 247.059,
    "s": 62.963,
    "l": 37.059
  },
  "oklch": {
    "l": 0.36597,
    "c": 0.18103,
    "h": 277.9
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#31239A

secondary

#B3BF5A

accent

#E642D3

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31239A

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

Preview Lab → · Contrast checker → · Palette generator →