#311E78#311E78

#311E78 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.4% C 0.143 H 284.7°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#311E78
RGB	rgb(49, 30, 120)
HSL	hsl(253, 60%, 29%)
HSV	hsv(253, 75%, 47%)
CMYK	cmyk(59.2%, 75%, 0%, 52.9%)
CIE-LAB	lab(19.79, 34.56, -48.18)
CIE-LCH	lch(19.79, 59.30, 305.65°)
OKLab	oklab(32.37% 0.0365 -0.1387)
OKLCH	oklch(32.37% 0.143 284.7)
XYZ	xyz(5.1200, 2.9373, 18.0628)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E78 #65781E

analogous

#1E3878 #311E78 #5E1E78

triadic

#311E78 #78311E #1E7831

tetradic

#311E78 #781E38 #65781E #1E785E

square

#311E78 #781E38 #65781E #1E785E

split-complementary

#311E78 #785E1E #38781E

monochromatic

#0A0618 #1D1247 #311E78 #452AA9 #5F41CF

Accessibility & contrast

On white

13.23

#311E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#311E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E78

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E78	#FFFFFF	#000000	##FFFFFF
##311E78	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327B

Deuteranopia (green-blind)

#002D76

Tritanopia (blue-blind)

#0D3649

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311e78;
/* rgb */ color: rgb(49, 30, 120);
/* oklch */ color: oklch(32.4% 0.143 284.7);

Tailwind

colors: {
  custom: {
    50: '#725ca0',
    500: '#311e78',
    950: '#000000',
  },
}

SCSS

$custom: #311e78;
$custom-light: #725ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#311e78",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 120
  },
  "hsl": {
    "h": 252.667,
    "s": 60,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32371,
    "c": 0.14344,
    "h": 284.7
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#311E78

secondary

#96AC46

accent

#E345C2

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #311E78

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

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