#3C31AB#3C31AB

#3C31AB is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.1% C 0.185 H 278.5°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#3C31AB
RGB	rgb(60, 49, 171)
HSL	hsl(245, 55%, 43%)
HSV	hsv(245, 71%, 67%)
CMYK	cmyk(64.9%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(29.66, 41.67, -63.51)
CIE-LCH	lch(29.66, 75.96, 303.27°)
OKLab	oklab(41.14% 0.0273 -0.1833)
OKLCH	oklch(41.14% 0.185 278.5)
XYZ	xyz(10.3101, 6.0967, 39.1536)
Luminance	0.0610 (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

#3C31AB #A0AB31

analogous

#3163AB #3C31AB #7931AB

triadic

#3C31AB #AB3C31 #31AB3C

tetradic

#3C31AB #AB3163 #A0AB31 #31AB79

square

#3C31AB #AB3163 #A0AB31 #31AB79

split-complementary

#3C31AB #AB7931 #63AB31

monochromatic

#1B164C #2B237B #3C31AB #594DCC #857DDA

Accessibility & contrast

On white

9.46

#3C31AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3C31AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C31AB

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C31AB	#FFFFFF	#000000	##FFFFFF
##3C31AB	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAF

Deuteranopia (green-blind)

#0041A9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3c31ab;
/* rgb */ color: rgb(60, 49, 171);
/* oklch */ color: oklch(41.1% 0.185 278.5);

Tailwind

colors: {
  custom: {
    50: '#806bc5',
    500: '#3c31ab',
    950: '#000000',
  },
}

SCSS

$custom: #3c31ab;
$custom-light: #806bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3c31ab",
  "rgb": {
    "r": 60,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 245.41,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41143,
    "c": 0.1853,
    "h": 278.5
  },
  "luminance": 0.06098
}

Semantic roles & 50–950 ramp

primary

#3C31AB

secondary

#BBC275

accent

#DF49D1

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3C31AB

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

Preview Lab → · Contrast checker → · Palette generator →