#311A78#311A78

#311A78 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.8% C 0.148 H 285.6°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#311A78
RGB	rgb(49, 26, 120)
HSL	hsl(255, 64%, 29%)
HSV	hsv(255, 78%, 47%)
CMYK	cmyk(59.2%, 78.3%, 0%, 52.9%)
CIE-LAB	lab(19.00, 36.79, -49.48)
CIE-LCH	lch(19.00, 61.66, 306.63°)
OKLab	oklab(31.81% 0.0398 -0.1425)
OKLCH	oklch(31.81% 0.148 285.6)
XYZ	xyz(5.0252, 2.7475, 18.0312)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A78 #61781A

analogous

#1A3278 #311A78 #601A78

triadic

#311A78 #78311A #1A7831

tetradic

#311A78 #781A32 #61781A #1A7860

square

#311A78 #781A32 #61781A #1A7860

split-complementary

#311A78 #78601A #32781A

monochromatic

#0A0519 #1C0F46 #311A78 #4625AA #5E38D4

Accessibility & contrast

On white

13.55

#311A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#311A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A78

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A78	#FFFFFF	#000000	##FFFFFF
##311A78	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002B76

Tritanopia (blue-blind)

#0D3448

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311a78;
/* rgb */ color: rgb(49, 26, 120);
/* oklch */ color: oklch(31.8% 0.148 285.6);

Tailwind

colors: {
  custom: {
    50: '#7259a0',
    500: '#311a78',
    950: '#000000',
  },
}

SCSS

$custom: #311a78;
$custom-light: #7259a0;
$custom-dark: #000000;

JSON

{
  "hex": "#311a78",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 120
  },
  "hsl": {
    "h": 254.681,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31814,
    "c": 0.14793,
    "h": 285.6
  },
  "luminance": 0.02748
}

Semantic roles & 50–950 ramp

primary

#311A78

secondary

#92AC41

accent

#E740BF

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #311A78

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

Preview Lab → · Contrast checker → · Palette generator →