#3937E2#3937E2

#3937E2 is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.4% C 0.246 H 272.3°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#3937E2
RGB	rgb(57, 55, 226)
HSL	hsl(241, 75%, 55%)
HSV	hsv(241, 76%, 89%)
CMYK	cmyk(74.8%, 75.7%, 0%, 11.4%)
CIE-LAB	lab(36.16, 55.65, -84.96)
CIE-LCH	lch(36.16, 101.56, 303.22°)
OKLab	oklab(47.36% 0.0101 -0.2459)
OKLCH	oklch(47.36% 0.246 272.3)
XYZ	xyz(16.7764, 9.0914, 72.8074)
Luminance	0.0909 (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

#3937E2 #E0E237

analogous

#378AE2 #3937E2 #8F37E2

triadic

#3937E2 #E23937 #37E239

tetradic

#3937E2 #E2378A #E0E237 #37E28F

square

#3937E2 #E2378A #E0E237 #37E28F

split-complementary

#3937E2 #E28F37 #8AE237

monochromatic

#15148B #1E1CC0 #3937E2 #6E6CEA #A3A2F2

Accessibility & contrast

On white

7.45

#3937E2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3937E2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937E2

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937E2	#FFFFFF	#000000	##FFFFFF
##3937E2	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DE7

Deuteranopia (green-blind)

#004CDF

Tritanopia (blue-blind)

#006A8B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3937e2;
/* rgb */ color: rgb(57, 55, 226);
/* oklch */ color: oklch(47.4% 0.246 272.3);

Tailwind

colors: {
  custom: {
    50: '#8a71ed',
    500: '#3937e2',
    950: '#000000',
  },
}

SCSS

$custom: #3937e2;
$custom-light: #8a71ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3937e2",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 226
  },
  "hsl": {
    "h": 240.702,
    "s": 74.672,
    "l": 55.098
  },
  "oklch": {
    "l": 0.47356,
    "c": 0.24612,
    "h": 272.3
  },
  "luminance": 0.09093
}

Semantic roles & 50–950 ramp

primary

#3937E2

secondary

#DDDE97

accent

#F137EF

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3937E2

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

Preview Lab → · Contrast checker → · Palette generator →