#3931C7#3931C7

#3931C7 is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.8% C 0.220 H 274.7°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3931C7
RGB	rgb(57, 49, 199)
HSL	hsl(243, 60%, 49%)
HSV	hsv(243, 75%, 78%)
CMYK	cmyk(71.4%, 75.4%, 0%, 22%)
CIE-LAB	lab(32.23, 50.32, -75.85)
CIE-LCH	lch(32.23, 91.02, 303.56°)
OKLab	oklab(43.75% 0.018 -0.2194)
OKLCH	oklch(43.75% 0.22 274.7)
XYZ	xyz(13.0910, 7.1887, 54.7194)
Luminance	0.0719 (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

#3931C7 #BFC731

analogous

#3174C7 #3931C7 #8431C7

triadic

#3931C7 #C73931 #31C739

tetradic

#3931C7 #C73174 #BFC731 #31C784

square

#3931C7 #C73174 #BFC731 #31C784

split-complementary

#3931C7 #C78431 #74C731

monochromatic

#1D1965 #2B2596 #3931C7 #645ED7 #938FE3

Accessibility & contrast

On white

8.61

#3931C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3931C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3931C7

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3931C7	#FFFFFF	#000000	##FFFFFF
##3931C7	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CB

Deuteranopia (green-blind)

#0045C4

Tritanopia (blue-blind)

#005D7A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3931c7;
/* rgb */ color: rgb(57, 49, 199);
/* oklch */ color: oklch(43.8% 0.220 274.7);

Tailwind

colors: {
  custom: {
    50: '#856cd9',
    500: '#3931c7',
    950: '#000000',
  },
}

SCSS

$custom: #3931c7;
$custom-light: #856cd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3931c7",
  "rgb": {
    "r": 57,
    "g": 49,
    "b": 199
  },
  "hsl": {
    "h": 243.2,
    "s": 60.484,
    "l": 48.627
  },
  "oklch": {
    "l": 0.43754,
    "c": 0.22009,
    "h": 274.7
  },
  "luminance": 0.0719
}

Semantic roles & 50–950 ramp

primary

#3931C7

secondary

#CACE86

accent

#E444DB

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3931C7

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

Preview Lab → · Contrast checker → · Palette generator →