#3931AA#3931AA

#3931AA is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.8% C 0.185 H 277.3°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#3931AA
RGB	rgb(57, 49, 170)
HSL	hsl(244, 55%, 43%)
HSV	hsv(244, 71%, 67%)
CMYK	cmyk(66.5%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(29.33, 40.96, -63.45)
CIE-LCH	lch(29.33, 75.52, 302.84°)
OKLab	oklab(40.82% 0.0235 -0.1832)
OKLCH	oklch(40.82% 0.185 277.3)
XYZ	xyz(10.0390, 5.9679, 38.6453)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931AA #A2AA31

analogous

#3165AA #3931AA #7531AA

triadic

#3931AA #AA3931 #31AA39

tetradic

#3931AA #AA3165 #A2AA31 #31AA75

square

#3931AA #AA3165 #A2AA31 #31AA75

split-complementary

#3931AA #AA7531 #65AA31

monochromatic

#19164B #29237A #3931AA #554DCC #827CD9

Accessibility & contrast

On white

9.57

#3931AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3931AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931AA

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931AA	#FFFFFF	#000000	##FFFFFF
##3931AA	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAE

Deuteranopia (green-blind)

#0040A8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3931aa;
/* rgb */ color: rgb(57, 49, 170);
/* oklch */ color: oklch(40.8% 0.185 277.3);

Tailwind

colors: {
  custom: {
    50: '#7e6ac4',
    500: '#3931aa',
    950: '#000000',
  },
}

SCSS

$custom: #3931aa;
$custom-light: #7e6ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3931aa",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 243.967,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40824,
    "c": 0.18469,
    "h": 277.3
  },
  "luminance": 0.05969
}

Semantic roles & 50–950 ramp

primary

#3931AA

secondary

#BDC275

accent

#DF49D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3931AA

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

Preview Lab → · Contrast checker → · Palette generator →