#3317B4#3317B4

#3317B4 is a dark, highly saturated violet. Relative luminance 0.046; OKLCH L 38.4% C 0.220 H 276.5°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#3317B4
RGB	rgb(51, 23, 180)
HSL	hsl(251, 77%, 40%)
HSV	hsv(251, 87%, 71%)
CMYK	cmyk(71.7%, 87.2%, 0%, 29.4%)
CIE-LAB	lab(25.60, 56.02, -75.63)
CIE-LCH	lch(25.60, 94.11, 306.53°)
OKLab	oklab(38.42% 0.0248 -0.2185)
OKLCH	oklch(38.42% 0.22 276.5)
XYZ	xyz(9.9072, 4.6109, 43.5391)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3317B4 #98B417

analogous

#1749B4 #3317B4 #8217B4

triadic

#3317B4 #B43317 #17B433

tetradic

#3317B4 #B41749 #98B417 #17B482

square

#3317B4 #B41749 #98B417 #17B482

split-complementary

#3317B4 #B48217 #49B417

monochromatic

#140947 #24107E #3317B4 #4725E3 #755BEA

Accessibility & contrast

On white

10.92

#3317B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#3317B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3317B4

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3317B4	#FFFFFF	#000000	##FFFFFF
##3317B4	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3317b4;
/* rgb */ color: rgb(51, 23, 180);
/* oklch */ color: oklch(38.4% 0.220 276.5);

Tailwind

colors: {
  custom: {
    50: '#805dcc',
    500: '#3317b4',
    950: '#000000',
  },
}

SCSS

$custom: #3317b4;
$custom-light: #805dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3317b4",
  "rgb": {
    "r": 51,
    "g": 23,
    "b": 180
  },
  "hsl": {
    "h": 250.701,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38417,
    "c": 0.21986,
    "h": 276.5
  },
  "luminance": 0.04612
}

Semantic roles & 50–950 ramp

primary

#3317B4

secondary

#B9CE59

accent

#F434D2

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #3317B4

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

Preview Lab → · Contrast checker → · Palette generator →