#311C80#311C80

#311C80 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.9% C 0.156 H 283.4°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#311C80
RGB	rgb(49, 28, 128)
HSL	hsl(253, 64%, 31%)
HSV	hsv(253, 78%, 50%)
CMYK	cmyk(61.7%, 78.1%, 0%, 49.8%)
CIE-LAB	lab(20.21, 38.22, -52.59)
CIE-LCH	lch(20.21, 65.01, 306.01°)
OKLab	oklab(32.91% 0.0361 -0.1516)
OKLCH	oklch(32.91% 0.156 283.4)
XYZ	xyz(5.5770, 3.0416, 20.7111)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C80 #6B801C

analogous

#1C3980 #311C80 #631C80

triadic

#311C80 #80311C #1C8031

tetradic

#311C80 #801C39 #6B801C #1C8063

square

#311C80 #801C39 #6B801C #1C8063

split-complementary

#311C80 #80631C #39801C

monochromatic

#0B061C #1E114E #311C80 #4427B2 #6041D5

Accessibility & contrast

On white

13.06

#311C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#311C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C80

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C80	#FFFFFF	#000000	##FFFFFF
##311C80	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003483

Deuteranopia (green-blind)

#002D7E

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311c80;
/* rgb */ color: rgb(49, 28, 128);
/* oklch */ color: oklch(32.9% 0.156 283.4);

Tailwind

colors: {
  custom: {
    50: '#745ba6',
    500: '#311c80',
    950: '#000000',
  },
}

SCSS

$custom: #311c80;
$custom-light: #745ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#311c80",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 128
  },
  "hsl": {
    "h": 252.6,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32913,
    "c": 0.15582,
    "h": 283.4
  },
  "luminance": 0.03042
}

Semantic roles & 50–950 ramp

primary

#311C80

secondary

#9CB344

accent

#E741C4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311C80

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

Preview Lab → · Contrast checker → · Palette generator →