#31177B#31177B

#31177B is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.8% C 0.155 H 285.4°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#31177B
RGB	rgb(49, 23, 123)
HSL	hsl(256, 68%, 29%)
HSV	hsv(256, 81%, 48%)
CMYK	cmyk(60.2%, 81.3%, 0%, 51.8%)
CIE-LAB	lab(18.78, 39.25, -51.76)
CIE-LCH	lch(18.78, 64.96, 307.17°)
OKLab	oklab(31.75% 0.0411 -0.1491)
OKLCH	oklch(31.75% 0.155 285.4)
XYZ	xyz(5.1471, 2.6955, 18.9841)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31177B #617B17

analogous

#172F7B #31177B #63177B

triadic

#31177B #7B3117 #177B31

tetradic

#31177B #7B172F #617B17 #177B63

square

#31177B #7B172F #617B17 #177B63

split-complementary

#31177B #7B6317 #2F7B17

monochromatic

#0A051A #1C0D47 #31177B #4621AF #5E33D9

Accessibility & contrast

On white

13.64

#31177B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#31177B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31177B

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31177B	#FFFFFF	#000000	##FFFFFF
##31177B	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002B79

Tritanopia (blue-blind)

#083449

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #31177b;
/* rgb */ color: rgb(49, 23, 123);
/* oklch */ color: oklch(31.8% 0.155 285.4);

Tailwind

colors: {
  custom: {
    50: '#7358a2',
    500: '#31177b',
    950: '#000000',
  },
}

SCSS

$custom: #31177b;
$custom-light: #7358a2;
$custom-dark: #000000;

JSON

{
  "hex": "#31177b",
  "rgb": {
    "r": 49,
    "g": 23,
    "b": 123
  },
  "hsl": {
    "h": 255.6,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31754,
    "c": 0.15467,
    "h": 285.4
  },
  "luminance": 0.02696
}

Semantic roles & 50–950 ramp

primary

#31177B

secondary

#92B03E

accent

#EB3CBE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09030F

muted

#7B787F

Preview Lab

Preview with #31177B

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

Preview Lab → · Contrast checker → · Palette generator →