#3937A3#3937A3

#3937A3 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.1% C 0.169 H 276.8°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#3937A3
RGB	rgb(57, 55, 163)
HSL	hsl(241, 50%, 43%)
HSV	hsv(241, 66%, 64%)
CMYK	cmyk(65%, 66.3%, 0%, 36.1%)
CIE-LAB	lab(30.02, 34.97, -58.09)
CIE-LCH	lch(30.02, 67.81, 301.05°)
OKLab	oklab(41.13% 0.02 -0.1675)
OKLCH	oklch(41.13% 0.169 276.8)
XYZ	xyz(9.6622, 6.2458, 35.3396)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3937A3 #A1A337

analogous

#376BA3 #3937A3 #6F37A3

triadic

#3937A3 #A33937 #37A339

tetradic

#3937A3 #A3376B #A1A337 #37A36F

square

#3937A3 #A3376B #A1A337 #37A36F

split-complementary

#3937A3 #A36F37 #6BA337

monochromatic

#191847 #292875 #3937A3 #5552C5 #8280D4

Accessibility & contrast

On white

9.34

#3937A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3937A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937A3

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937A3	#FFFFFF	#000000	##FFFFFF
##3937A3	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA6

Deuteranopia (green-blind)

#0042A1

Tritanopia (blue-blind)

#005368

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3937a3;
/* rgb */ color: rgb(57, 55, 163);
/* oklch */ color: oklch(41.1% 0.169 276.8);

Tailwind

colors: {
  custom: {
    50: '#7c6ebf',
    500: '#3937a3',
    950: '#000000',
  },
}

SCSS

$custom: #3937a3;
$custom-light: #7c6ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#3937a3",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 163
  },
  "hsl": {
    "h": 241.111,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41127,
    "c": 0.16871,
    "h": 276.8
  },
  "luminance": 0.06247
}

Semantic roles & 50–950 ramp

primary

#3937A3

secondary

#BCBE78

accent

#D94FD7

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3937A3

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

Preview Lab → · Contrast checker → · Palette generator →