#31187B#31187B

#31187B is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.9% C 0.154 H 285.2°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#31187B
RGB	rgb(49, 24, 123)
HSL	hsl(255, 67%, 29%)
HSV	hsv(255, 80%, 48%)
CMYK	cmyk(60.2%, 80.5%, 0%, 51.8%)
CIE-LAB	lab(18.95, 38.75, -51.48)
CIE-LCH	lch(18.95, 64.43, 306.97°)
OKLab	oklab(31.87% 0.0404 -0.1483)
OKLCH	oklch(31.87% 0.154 285.2)
XYZ	xyz(5.1673, 2.7360, 18.9909)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31187B #627B18

analogous

#18307B #31187B #63187B

triadic

#31187B #7B3118 #187B31

tetradic

#31187B #7B1830 #627B18 #187B63

square

#31187B #7B1830 #627B18 #187B63

split-complementary

#31187B #7B6318 #307B18

monochromatic

#0A051A #1D0E48 #31187B #4522AE #5F36D8

Accessibility & contrast

On white

13.57

#31187B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#31187B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31187B

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31187B	#FFFFFF	#000000	##FFFFFF
##31187B	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317E

Deuteranopia (green-blind)

#002B79

Tritanopia (blue-blind)

#083549

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #31187b;
/* rgb */ color: rgb(49, 24, 123);
/* oklch */ color: oklch(31.9% 0.154 285.2);

Tailwind

colors: {
  custom: {
    50: '#7359a2',
    500: '#31187b',
    950: '#000000',
  },
}

SCSS

$custom: #31187b;
$custom-light: #7359a2;
$custom-dark: #000000;

JSON

{
  "hex": "#31187b",
  "rgb": {
    "r": 49,
    "g": 24,
    "b": 123
  },
  "hsl": {
    "h": 255.152,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31875,
    "c": 0.1537,
    "h": 285.2
  },
  "luminance": 0.02736
}

Semantic roles & 50–950 ramp

primary

#31187B

secondary

#93B03F

accent

#EA3EBF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #31187B

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

Preview Lab → · Contrast checker → · Palette generator →