#3917B4#3917B4

#3917B4 is a dark, highly saturated violet. Relative luminance 0.048; OKLCH L 38.9% C 0.219 H 278.9°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#3917B4
RGB	rgb(57, 23, 180)
HSL	hsl(253, 77%, 40%)
HSV	hsv(253, 87%, 71%)
CMYK	cmyk(68.3%, 87.2%, 0%, 29.4%)
CIE-LAB	lab(26.09, 56.41, -74.79)
CIE-LCH	lch(26.09, 93.68, 307.02°)
OKLab	oklab(38.88% 0.0337 -0.2159)
OKLCH	oklch(38.88% 0.219 278.9)
XYZ	xyz(10.2293, 4.7771, 43.5542)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3917B4 #92B417

analogous

#1743B4 #3917B4 #8817B4

triadic

#3917B4 #B43917 #17B439

tetradic

#3917B4 #B41743 #92B417 #17B488

square

#3917B4 #B41743 #92B417 #17B488

split-complementary

#3917B4 #B48817 #43B417

monochromatic

#170947 #28107E #3917B4 #4E25E3 #7A5BEA

Accessibility & contrast

On white

10.74

#3917B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3917B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3917B4

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3917B4	#FFFFFF	#000000	##FFFFFF
##3917B4	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0037B1

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3917b4;
/* rgb */ color: rgb(57, 23, 180);
/* oklch */ color: oklch(38.9% 0.219 278.9);

Tailwind

colors: {
  custom: {
    50: '#825dcc',
    500: '#3917b4',
    950: '#000000',
  },
}

SCSS

$custom: #3917b4;
$custom-light: #825dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3917b4",
  "rgb": {
    "r": 57,
    "g": 23,
    "b": 180
  },
  "hsl": {
    "h": 252.994,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38877,
    "c": 0.21854,
    "h": 278.9
  },
  "luminance": 0.04778
}

Semantic roles & 50–950 ramp

primary

#3917B4

secondary

#B4CE59

accent

#F434CA

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #3917B4

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

Preview Lab → · Contrast checker → · Palette generator →