#311E8B#311E8B

#311E8B is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.3% C 0.167 H 280.9°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#311E8B
RGB	rgb(49, 30, 139)
HSL	hsl(250, 64%, 33%)
HSV	hsv(250, 78%, 55%)
CMYK	cmyk(64.7%, 78.4%, 0%, 45.5%)
CIE-LAB	lab(21.74, 40.61, -56.98)
CIE-LCH	lch(21.74, 69.97, 305.48°)
OKLab	oklab(34.34% 0.0317 -0.1644)
OKLCH	oklch(34.34% 0.167 280.9)
XYZ	xyz(6.3896, 3.4451, 24.7494)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E8B #788B1E

analogous

#1E418B #311E8B #671E8B

triadic

#311E8B #8B311E #1E8B31

tetradic

#311E8B #8B1E41 #788B1E #1E8B67

square

#311E8B #8B1E41 #788B1E #1E8B67

split-complementary

#311E8B #8B671E #418B1E

monochromatic

#0E0826 #1F1359 #311E8B #4329BD #644BD8

Accessibility & contrast

On white

12.43

#311E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#311E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E8B

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E8B	#FFFFFF	#000000	##FFFFFF
##311E8B	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#003089

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #311e8b;
/* rgb */ color: rgb(49, 30, 139);
/* oklch */ color: oklch(34.3% 0.167 280.9);

Tailwind

colors: {
  custom: {
    50: '#765dae',
    500: '#311e8b',
    950: '#000000',
  },
}

SCSS

$custom: #311e8b;
$custom-light: #765dae;
$custom-dark: #000000;

JSON

{
  "hex": "#311e8b",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 139
  },
  "hsl": {
    "h": 250.459,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34338,
    "c": 0.16744,
    "h": 280.9
  },
  "luminance": 0.03446
}

Semantic roles & 50–950 ramp

primary

#311E8B

secondary

#A7BB4A

accent

#E740CA

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #311E8B

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

Preview Lab → · Contrast checker → · Palette generator →