#311A8F#311A8F

#311A8F is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.3% C 0.176 H 280.8°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#311A8F
RGB	rgb(49, 26, 143)
HSL	hsl(252, 69%, 33%)
HSV	hsv(252, 82%, 56%)
CMYK	cmyk(65.7%, 81.8%, 0%, 43.9%)
CIE-LAB	lab(21.48, 43.86, -59.90)
CIE-LCH	lch(21.48, 74.24, 306.21°)
OKLab	oklab(34.29% 0.0328 -0.1729)
OKLCH	oklch(34.29% 0.176 280.8)
XYZ	xyz(6.5924, 3.3744, 26.2852)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A8F #788F1A

analogous

#1A3D8F #311A8F #6B1A8F

triadic

#311A8F #8F311A #1A8F31

tetradic

#311A8F #8F1A3D #788F1A #1A8F6B

square

#311A8F #8F1A3D #788F1A #1A8F6B

split-complementary

#311A8F #8F6B1A #3D8F1A

monochromatic

#0E0727 #1F115B #311A8F #4323C3 #6446DD

Accessibility & contrast

On white

12.54

#311A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#311A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A8F

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A8F	#FFFFFF	#000000	##FFFFFF
##311A8F	1.00	12.54	1.68	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002F8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #311a8f;
/* rgb */ color: rgb(49, 26, 143);
/* oklch */ color: oklch(34.3% 0.176 280.8);

Tailwind

colors: {
  custom: {
    50: '#775bb1',
    500: '#311a8f',
    950: '#000000',
  },
}

SCSS

$custom: #311a8f;
$custom-light: #775bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#311a8f",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 143
  },
  "hsl": {
    "h": 251.795,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34287,
    "c": 0.17598,
    "h": 280.8
  },
  "luminance": 0.03375
}

Semantic roles & 50–950 ramp

primary

#311A8F

secondary

#A7BF46

accent

#EC3CC9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311A8F

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

Preview Lab → · Contrast checker → · Palette generator →