#3931CC#3931CC

#3931CC is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.3% C 0.226 H 274.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3931CC
RGB	rgb(57, 49, 204)
HSL	hsl(243, 61%, 50%)
HSV	hsv(243, 76%, 80%)
CMYK	cmyk(72.1%, 76%, 0%, 20%)
CIE-LAB	lab(32.76, 51.89, -77.90)
CIE-LCH	lch(32.76, 93.60, 303.67°)
OKLab	oklab(44.28% 0.0169 -0.2253)
OKLCH	oklch(44.28% 0.226 274.3)
XYZ	xyz(13.6811, 7.4248, 57.8271)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.62

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3931CC #C4CC31

analogous

#3176CC #3931CC #8731CC

triadic

#3931CC #CC3931 #31CC39

tetradic

#3931CC #CC3176 #C4CC31 #31CC87

square

#3931CC #CC3176 #C4CC31 #31CC87

split-complementary

#3931CC #CC8731 #76CC31

monochromatic

#1D1969 #2B259B #3931CC #6761D9 #9792E5

Accessibility & contrast

On white

8.45

#3931CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3931CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931CC

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931CC	#FFFFFF	#000000	##FFFFFF
##3931CC	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054D0

Deuteranopia (green-blind)

#0046C9

Tritanopia (blue-blind)

#005F7D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3931cc;
/* rgb */ color: rgb(57, 49, 204);
/* oklch */ color: oklch(44.3% 0.226 274.3);

Tailwind

colors: {
  custom: {
    50: '#866cdd',
    500: '#3931cc',
    950: '#000000',
  },
}

SCSS

$custom: #3931cc;
$custom-light: #866cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3931cc",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 204
  },
  "hsl": {
    "h": 243.097,
    "s": 61.265,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44277,
    "c": 0.22597,
    "h": 274.3
  },
  "luminance": 0.07426
}

Semantic roles & 50–950 ramp

primary

#3931CC

secondary

#CCD089

accent

#E443DC

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3931CC

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

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