#311F87#311F87

#311F87 is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.0% C 0.161 H 281.5°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#311F87
RGB	rgb(49, 31, 135)
HSL	hsl(250, 63%, 33%)
HSV	hsv(250, 77%, 53%)
CMYK	cmyk(63.7%, 77%, 0%, 47.1%)
CIE-LAB	lab(21.51, 38.81, -54.86)
CIE-LCH	lch(21.51, 67.20, 305.27°)
OKLab	oklab(34.05% 0.0321 -0.1582)
OKLCH	oklch(34.05% 0.161 281.5)
XYZ	xyz(6.1284, 3.3818, 23.2468)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F87 #75871F

analogous

#1F4187 #311F87 #651F87

triadic

#311F87 #87311F #1F8731

tetradic

#311F87 #871F41 #75871F #1F8765

square

#311F87 #871F41 #75871F #1F8765

split-complementary

#311F87 #87651F #41871F

monochromatic

#0D0823 #1F1455 #311F87 #432AB9 #634BD6

Accessibility & contrast

On white

12.53

#311F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#311F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F87

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F87	#FFFFFF	#000000	##FFFFFF
##311F87	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378A

Deuteranopia (green-blind)

#003085

Tritanopia (blue-blind)

#003D51

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #311f87;
/* rgb */ color: rgb(49, 31, 135);
/* oklch */ color: oklch(34.0% 0.161 281.5);

Tailwind

colors: {
  custom: {
    50: '#755dab',
    500: '#311f87',
    950: '#000000',
  },
}

SCSS

$custom: #311f87;
$custom-light: #755dab;
$custom-dark: #000000;

JSON

{
  "hex": "#311f87",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 135
  },
  "hsl": {
    "h": 250.385,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34048,
    "c": 0.16146,
    "h": 281.5
  },
  "luminance": 0.03382
}

Semantic roles & 50–950 ramp

primary

#311F87

secondary

#A5B84A

accent

#E642C9

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311F87

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

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