#3937BE#3937BE

#3937BE is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.7% C 0.203 H 274.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3937BE
RGB	rgb(57, 55, 190)
HSL	hsl(241, 55%, 48%)
HSV	hsv(241, 71%, 75%)
CMYK	cmyk(70%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(32.52, 44.07, -70.09)
CIE-LCH	lch(32.52, 82.79, 302.16°)
OKLab	oklab(43.69% 0.0164 -0.2026)
OKLCH	oklch(43.69% 0.203 274.6)
XYZ	xyz(12.3447, 7.3188, 49.4673)
Luminance	0.0732 (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

#3937BE #BCBE37

analogous

#3778BE #3937BE #7C37BE

triadic

#3937BE #BE3937 #37BE39

tetradic

#3937BE #BE3778 #BCBE37 #37BE7C

square

#3937BE #BE3778 #BCBE37 #37BE7C

split-complementary

#3937BE #BE7C37 #78BE37

monochromatic

#1D1C5F #2B298F #3937BE #6361D1 #9290DF

Accessibility & contrast

On white

8.52

#3937BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3937BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937BE

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937BE	#FFFFFF	#000000	##FFFFFF
##3937BE	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C2

Deuteranopia (green-blind)

#0046BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3937be;
/* rgb */ color: rgb(57, 55, 190);
/* oklch */ color: oklch(43.7% 0.203 274.6);

Tailwind

colors: {
  custom: {
    50: '#826fd3',
    500: '#3937be',
    950: '#000000',
  },
}

SCSS

$custom: #3937be;
$custom-light: #826fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3937be",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 240.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4369,
    "c": 0.20328,
    "h": 274.6
  },
  "luminance": 0.0732
}

Semantic roles & 50–950 ramp

primary

#3937BE

secondary

#C9CA87

accent

#DE49DC

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3937BE

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

Preview Lab → · Contrast checker → · Palette generator →