#311F75#311F75

#311F75 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.2% C 0.138 H 285.2°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#311F75
RGB	rgb(49, 31, 117)
HSL	hsl(253, 58%, 29%)
HSV	hsv(253, 74%, 46%)
CMYK	cmyk(58.1%, 73.5%, 0%, 54.1%)
CIE-LAB	lab(19.71, 33.01, -46.40)
CIE-LCH	lch(19.71, 56.94, 305.43°)
OKLab	oklab(32.22% 0.0363 -0.1335)
OKLCH	oklch(32.22% 0.138 285.2)
XYZ	xyz(4.9665, 2.9170, 17.1275)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F75 #63751F

analogous

#1F3875 #311F75 #5C1F75

triadic

#311F75 #75311F #1F7531

tetradic

#311F75 #751F38 #63751F #1F755C

square

#311F75 #751F38 #63751F #1F755C

split-complementary

#311F75 #755C1F #38751F

monochromatic

#0A0618 #1D1245 #311F75 #452CA5 #5F42CD

Accessibility & contrast

On white

13.26

#311F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#311F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F75

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F75	#FFFFFF	#000000	##FFFFFF
##311F75	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003278

Deuteranopia (green-blind)

#002D73

Tritanopia (blue-blind)

#113647

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311f75;
/* rgb */ color: rgb(49, 31, 117);
/* oklch */ color: oklch(32.2% 0.138 285.2);

Tailwind

colors: {
  custom: {
    50: '#715c9e',
    500: '#311f75',
    950: '#000000',
  },
}

SCSS

$custom: #311f75;
$custom-light: #715c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#311f75",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 117
  },
  "hsl": {
    "h": 252.558,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32223,
    "c": 0.13832,
    "h": 285.2
  },
  "luminance": 0.02917
}

Semantic roles & 50–950 ramp

primary

#311F75

secondary

#94A947

accent

#E146C1

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311F75

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

Preview Lab → · Contrast checker → · Palette generator →