#3937B6#3937B6

#3937B6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.193 H 275.2°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#3937B6
RGB	rgb(57, 55, 182)
HSL	hsl(241, 54%, 46%)
HSV	hsv(241, 70%, 71%)
CMYK	cmyk(68.7%, 69.8%, 0%, 28.6%)
CIE-LAB	lab(31.76, 41.40, -66.62)
CIE-LCH	lch(31.76, 78.44, 301.86°)
OKLab	oklab(42.91% 0.0176 -0.1925)
OKLCH	oklch(42.91% 0.193 275.2)
XYZ	xyz(11.4942, 6.9786, 44.9882)
Luminance	0.0698 (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

#3937B6 #B4B637

analogous

#3775B6 #3937B6 #7937B6

triadic

#3937B6 #B63937 #37B639

tetradic

#3937B6 #B63775 #B4B637 #37B679

square

#3937B6 #B63775 #B4B637 #37B679

split-complementary

#3937B6 #B67937 #75B637

monochromatic

#1C1B58 #2A2987 #3937B6 #5E5CCE #8D8BDC

Accessibility & contrast

On white

8.76

#3937B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3937B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937B6

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937B6	#FFFFFF	#000000	##FFFFFF
##3937B6	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3937b6;
/* rgb */ color: rgb(57, 55, 182);
/* oklch */ color: oklch(42.9% 0.193 275.2);

Tailwind

colors: {
  custom: {
    50: '#806fcd',
    500: '#3937b6',
    950: '#000000',
  },
}

SCSS

$custom: #3937b6;
$custom-light: #806fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3937b6",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 182
  },
  "hsl": {
    "h": 240.945,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42911,
    "c": 0.19329,
    "h": 275.2
  },
  "luminance": 0.0698
}

Semantic roles & 50–950 ramp

primary

#3937B6

secondary

#C5C682

accent

#DD4BDB

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3937B6

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

Preview Lab → · Contrast checker → · Palette generator →