#310739#310739

#310739 is a very dark, moderate purple. Relative luminance 0.011; OKLCH L 23.5% C 0.097 H 320.6°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).

Color values

HEX	#310739
RGB	rgb(49, 7, 57)
HSL	hsl(290, 78%, 13%)
HSV	hsv(290, 88%, 22%)
CMYK	cmyk(14%, 87.7%, 0%, 77.6%)
CIE-LAB	lab(9.80, 28.66, -21.85)
CIE-LCH	lch(9.80, 36.04, 322.68°)
OKLab	oklab(23.51% 0.0747 -0.0612)
OKLCH	oklch(23.51% 0.097 320.6)
XYZ	xyz(2.0810, 1.1004, 3.9729)
Luminance	0.0110 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310739 #0F3907

analogous

#180739 #310739 #390728

triadic

#310739 #393107 #073931

tetradic

#310739 #391807 #0F3907 #072839

square

#310739 #391807 #0F3907 #072839

split-complementary

#310739 #283907 #073918

monochromatic

#17031B #17031B #310739 #600E70 #8F14A6

Accessibility & contrast

On white

17.21

#310739 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#310739 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310739

17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310739	#FFFFFF	#000000	##FFFFFF
##310739	1.00	17.21	1.22	17.21
#FFFFFF	17.21	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183A

Deuteranopia (green-blind)

#0C1D38

Tritanopia (blue-blind)

#31111F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #310739;
/* rgb */ color: rgb(49, 7, 57);
/* oklch */ color: oklch(23.5% 0.097 320.6);

Tailwind

colors: {
  custom: {
    50: '#6b4c70',
    500: '#310739',
    950: '#000000',
  },
}

SCSS

$custom: #310739;
$custom-light: #6b4c70;
$custom-dark: #000000;

JSON

{
  "hex": "#310739",
  "rgb": {
    "r": 49,
    "g": 7,
    "b": 57
  },
  "hsl": {
    "h": 290.4,
    "s": 78.125,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23511,
    "c": 0.09658,
    "h": 320.6
  },
  "luminance": 0.011
}

Semantic roles & 50–950 ramp

primary

#310739

secondary

#317923

accent

#F53352

background

#F6F4F6

surface

#EBE7EC

border

#C6C3C7

text

#070107

muted

#7A777A

Preview Lab

Preview with #310739

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

Preview Lab → · Contrast checker → · Palette generator →