#31157B#31157B

#31157B is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.5% C 0.157 H 285.7°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#31157B
RGB	rgb(49, 21, 123)
HSL	hsl(256, 71%, 28%)
HSV	hsv(256, 83%, 48%)
CMYK	cmyk(60.2%, 82.9%, 0%, 51.8%)
CIE-LAB	lab(18.45, 40.21, -52.31)
CIE-LCH	lch(18.45, 65.98, 307.55°)
OKLab	oklab(31.52% 0.0424 -0.1507)
OKLCH	oklch(31.52% 0.157 285.7)
XYZ	xyz(5.1089, 2.6191, 18.9714)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31157B #5F7B15

analogous

#152C7B #31157B #64157B

triadic

#31157B #7B3115 #157B31

tetradic

#31157B #7B152C #5F7B15 #157B64

square

#31157B #7B152C #5F7B15 #157B64

split-complementary

#31157B #7B6415 #2C7B15

monochromatic

#0A041A #1C0C47 #31157B #461EAF #5E2FDB

Accessibility & contrast

On white

13.78

#31157B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#31157B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31157B

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31157B	#FFFFFF	#000000	##FFFFFF
##31157B	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002A79

Tritanopia (blue-blind)

#083448

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #31157b;
/* rgb */ color: rgb(49, 21, 123);
/* oklch */ color: oklch(31.5% 0.157 285.7);

Tailwind

colors: {
  custom: {
    50: '#7357a2',
    500: '#31157b',
    950: '#000000',
  },
}

SCSS

$custom: #31157b;
$custom-light: #7357a2;
$custom-dark: #000000;

JSON

{
  "hex": "#31157b",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 123
  },
  "hsl": {
    "h": 256.471,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31524,
    "c": 0.15656,
    "h": 285.7
  },
  "luminance": 0.02619
}

Semantic roles & 50–950 ramp

primary

#31157B

secondary

#90B03B

accent

#EE3ABC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09030F

muted

#7B787F

Preview Lab

Preview with #31157B

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

Preview Lab → · Contrast checker → · Palette generator →