#3937C4#3937C4

#3937C4 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.3% C 0.211 H 274.2°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#3937C4
RGB	rgb(57, 55, 196)
HSL	hsl(241, 56%, 49%)
HSV	hsv(241, 72%, 77%)
CMYK	cmyk(70.9%, 71.9%, 0%, 23.1%)
CIE-LAB	lab(33.11, 46.04, -72.65)
CIE-LCH	lch(33.11, 86.01, 302.36°)
OKLab	oklab(44.28% 0.0155 -0.2101)
OKLCH	oklch(44.28% 0.211 274.2)
XYZ	xyz(13.0140, 7.5865, 52.9923)
Luminance	0.0759 (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

#3937C4 #C2C437

analogous

#377CC4 #3937C4 #8037C4

triadic

#3937C4 #C43937 #37C439

tetradic

#3937C4 #C4377C #C2C437 #37C480

square

#3937C4 #C4377C #C2C437 #37C480

split-complementary

#3937C4 #C48037 #7CC437

monochromatic

#1D1C64 #2B2A94 #3937C4 #6665D4 #9594E1

Accessibility & contrast

On white

8.34

#3937C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3937C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937C4

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937C4	#FFFFFF	#000000	##FFFFFF
##3937C4	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C8

Deuteranopia (green-blind)

#0047C1

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3937c4;
/* rgb */ color: rgb(57, 55, 196);
/* oklch */ color: oklch(44.3% 0.211 274.2);

Tailwind

colors: {
  custom: {
    50: '#836fd7',
    500: '#3937c4',
    950: '#000000',
  },
}

SCSS

$custom: #3937c4;
$custom-light: #836fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3937c4",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 196
  },
  "hsl": {
    "h": 240.851,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.44284,
    "c": 0.21066,
    "h": 274.2
  },
  "luminance": 0.07588
}

Semantic roles & 50–950 ramp

primary

#3937C4

secondary

#CBCC8B

accent

#DF48DD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3937C4

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

Preview Lab → · Contrast checker → · Palette generator →