#3937C6#3937C6

#3937C6 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.5% C 0.213 H 274.1°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#3937C6
RGB	rgb(57, 55, 198)
HSL	hsl(241, 57%, 50%)
HSV	hsv(241, 72%, 78%)
CMYK	cmyk(71.2%, 72.2%, 0%, 22.4%)
CIE-LAB	lab(33.30, 46.70, -73.50)
CIE-LCH	lch(33.30, 87.08, 302.43°)
OKLab	oklab(44.48% 0.0151 -0.2125)
OKLCH	oklch(44.48% 0.213 274.1)
XYZ	xyz(13.2432, 7.6782, 54.1992)
Luminance	0.0768 (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

#3937C6 #C4C637

analogous

#377DC6 #3937C6 #8137C6

triadic

#3937C6 #C63937 #37C639

tetradic

#3937C6 #C6377D #C4C637 #37C681

square

#3937C6 #C6377D #C4C637 #37C681

split-complementary

#3937C6 #C68137 #7DC637

monochromatic

#1D1C66 #2B2A96 #3937C6 #6766D4 #9796E2

Accessibility & contrast

On white

8.28

#3937C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3937C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937C6

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937C6	#FFFFFF	#000000	##FFFFFF
##3937C6	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CA

Deuteranopia (green-blind)

#0048C3

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3937c6;
/* rgb */ color: rgb(57, 55, 198);
/* oklch */ color: oklch(44.5% 0.213 274.1);

Tailwind

colors: {
  custom: {
    50: '#846fd9',
    500: '#3937c6',
    950: '#000000',
  },
}

SCSS

$custom: #3937c6;
$custom-light: #846fd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3937c6",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 198
  },
  "hsl": {
    "h": 240.839,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44483,
    "c": 0.21309,
    "h": 274.1
  },
  "luminance": 0.07679
}

Semantic roles & 50–950 ramp

primary

#3937C6

secondary

#CCCD8C

accent

#E048DE

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3937C6

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

Preview Lab → · Contrast checker → · Palette generator →