#310D58#310D58

#310D58 is a dark, vivid violet. Relative luminance 0.016; OKLCH L 27.0% C 0.123 H 299.5°. Best body text is #FFFFFF at 15.80:1 contrast (WCAG AA passes).

Color values

HEX	#310D58
RGB	rgb(49, 13, 88)
HSL	hsl(269, 74%, 20%)
HSV	hsv(269, 85%, 35%)
CMYK	cmyk(44.3%, 85.2%, 0%, 65.5%)
CIE-LAB	lab(13.50, 33.80, -37.46)
CIE-LCH	lch(13.50, 50.46, 312.06°)
OKLab	oklab(26.98% 0.0607 -0.1072)
OKLCH	oklch(26.98% 0.123 299.5)
XYZ	xyz(3.1716, 1.6454, 9.3811)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 3.28

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#310D58 #34580D

analogous

#0D0F58 #310D58 #570D58

triadic

#310D58 #58310D #0D5831

tetradic

#310D58 #580D0F #34580D #0D5857

square

#310D58 #580D0F #34580D #0D5857

split-complementary

#310D58 #58570D #0F580D

monochromatic

#0F041B #130523 #310D58 #4F158D #6C1DC3

Accessibility & contrast

On white

15.80

#310D58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#310D58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #310D58

15.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##310D58	#FFFFFF	#000000	##FFFFFF
##310D58	1.00	15.80	1.33	15.80
#FFFFFF	15.80	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225A

Deuteranopia (green-blind)

#002257

Tritanopia (blue-blind)

#282233

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #310d58;
/* rgb */ color: rgb(49, 13, 88);
/* oklch */ color: oklch(27.0% 0.123 299.5);

Tailwind

colors: {
  custom: {
    50: '#6e5188',
    500: '#310d58',
    950: '#000000',
  },
}

SCSS

$custom: #310d58;
$custom-light: #6e5188;
$custom-dark: #000000;

JSON

{
  "hex": "#310d58",
  "rgb": {
    "r": 49,
    "g": 13,
    "b": 88
  },
  "hsl": {
    "h": 268.8,
    "s": 74.257,
    "l": 19.804
  },
  "oklch": {
    "l": 0.26977,
    "c": 0.12317,
    "h": 299.5
  },
  "luminance": 0.01645
}

Semantic roles & 50–950 ramp

primary

#310D58

secondary

#62932E

accent

#F13798

background

#F6F4F8

surface

#ECE7F0

border

#C7C3CB

text

#08020B

muted

#7B787C

Preview Lab

Preview with #310D58

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

Preview Lab → · Contrast checker → · Palette generator →