#310B4E#310B4E

#310B4E is a dark, moderate violet. Relative luminance 0.014; OKLCH L 25.8% C 0.114 H 305.2°. Best body text is #FFFFFF at 16.30:1 contrast (WCAG AA passes).

Color values

HEX	#310B4E
RGB	rgb(49, 11, 78)
HSL	hsl(274, 75%, 17%)
HSV	hsv(274, 86%, 31%)
CMYK	cmyk(37.2%, 85.9%, 0%, 69.4%)
CIE-LAB	lab(12.24, 31.99, -32.71)
CIE-LCH	lch(12.24, 45.75, 314.36°)
OKLab	oklab(25.8% 0.0657 -0.0932)
OKLCH	oklch(25.8% 0.114 305.2)
XYZ	xyz(2.7611, 1.4424, 7.3392)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310B4E #284E0B

analogous

#100B4E #310B4E #4E0B49

triadic

#310B4E #4E310B #0B4E31

tetradic

#310B4E #4E100B #284E0B #0B494E

square

#310B4E #4E100B #284E0B #0B494E

split-complementary

#310B4E #494E0B #0B4E10

monochromatic

#11041B #11041B #310B4E #531384 #741AB9

Accessibility & contrast

On white

16.30

#310B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#310B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310B4E

16.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310B4E	#FFFFFF	#000000	##FFFFFF
##310B4E	1.00	16.30	1.29	16.30
#FFFFFF	16.30	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F50

Deuteranopia (green-blind)

#00204D

Tritanopia (blue-blind)

#2C1D2C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #310b4e;
/* rgb */ color: rgb(49, 11, 78);
/* oklch */ color: oklch(25.8% 0.114 305.2);

Tailwind

colors: {
  custom: {
    50: '#6d4f80',
    500: '#310b4e',
    950: '#000000',
  },
}

SCSS

$custom: #310b4e;
$custom-light: #6d4f80;
$custom-dark: #000000;

JSON

{
  "hex": "#310b4e",
  "rgb": {
    "r": 49,
    "g": 11,
    "b": 78
  },
  "hsl": {
    "h": 274.03,
    "s": 75.281,
    "l": 17.451
  },
  "oklch": {
    "l": 0.25795,
    "c": 0.11401,
    "h": 305.2
  },
  "luminance": 0.01442
}

Semantic roles & 50–950 ramp

primary

#310B4E

secondary

#548A2B

accent

#F23687

background

#F6F4F7

surface

#ECE7EE

border

#C7C3C9

text

#07020A

muted

#7A787C

Preview Lab

Preview with #310B4E

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

Preview Lab → · Contrast checker → · Palette generator →