#3931C9#3931C9

#3931C9 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 44.0% C 0.222 H 274.5°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3931C9
RGB	rgb(57, 49, 201)
HSL	hsl(243, 61%, 49%)
HSV	hsv(243, 76%, 79%)
CMYK	cmyk(71.6%, 75.6%, 0%, 21.2%)
CIE-LAB	lab(32.44, 50.95, -76.67)
CIE-LCH	lch(32.44, 92.06, 303.60°)
OKLab	oklab(43.96% 0.0175 -0.2218)
OKLCH	oklch(43.96% 0.222 274.5)
XYZ	xyz(13.3248, 7.2822, 55.9504)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.75

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931C9 #C1C931

analogous

#3175C9 #3931C9 #8531C9

triadic

#3931C9 #C93931 #31C939

tetradic

#3931C9 #C93175 #C1C931 #31C985

square

#3931C9 #C93175 #C1C931 #31C985

split-complementary

#3931C9 #C98531 #75C931

monochromatic

#1D1967 #2B2598 #3931C9 #665FD8 #9590E4

Accessibility & contrast

On white

8.55

#3931C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3931C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931C9

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931C9	#FFFFFF	#000000	##FFFFFF
##3931C9	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CD

Deuteranopia (green-blind)

#0045C6

Tritanopia (blue-blind)

#005E7B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3931c9;
/* rgb */ color: rgb(57, 49, 201);
/* oklch */ color: oklch(44.0% 0.222 274.5);

Tailwind

colors: {
  custom: {
    50: '#856cdb',
    500: '#3931c9',
    950: '#000000',
  },
}

SCSS

$custom: #3931c9;
$custom-light: #856cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3931c9",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 201
  },
  "hsl": {
    "h": 243.158,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.43962,
    "c": 0.22245,
    "h": 274.5
  },
  "luminance": 0.07284
}

Semantic roles & 50–950 ramp

primary

#3931C9

secondary

#CBCF87

accent

#E444DC

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3931C9

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

Preview Lab → · Contrast checker → · Palette generator →