#3B37CF#3B37CF

#3B37CF is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.5% C 0.223 H 274.1°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3B37CF
RGB	rgb(59, 55, 207)
HSL	hsl(242, 61%, 51%)
HSV	hsv(242, 73%, 81%)
CMYK	cmyk(71.5%, 73.4%, 0%, 18.8%)
CIE-LAB	lab(34.33, 49.80, -77.05)
CIE-LCH	lch(34.33, 91.74, 302.88°)
OKLab	oklab(45.51% 0.0159 -0.2229)
OKLCH	oklch(45.51% 0.223 274.1)
XYZ	xyz(14.4286, 8.1658, 59.8351)
Luminance	0.0817 (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

#3B37CF #CBCF37

analogous

#377FCF #3B37CF #8737CF

triadic

#3B37CF #CF3B37 #37CF3B

tetradic

#3B37CF #CF377F #CBCF37 #37CF87

square

#3B37CF #CF377F #CBCF37 #37CF87

split-complementary

#3B37CF #CF8737 #7FCF37

monochromatic

#1D1B71 #2A27A2 #3B37CF #6B68DB #9C9AE7

Accessibility & contrast

On white

7.97

#3B37CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3B37CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B37CF

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B37CF	#FFFFFF	#000000	##FFFFFF
##3B37CF	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D3

Deuteranopia (green-blind)

#0049CC

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3b37cf;
/* rgb */ color: rgb(59, 55, 207);
/* oklch */ color: oklch(45.5% 0.223 274.1);

Tailwind

colors: {
  custom: {
    50: '#8770df',
    500: '#3b37cf',
    950: '#000000',
  },
}

SCSS

$custom: #3b37cf;
$custom-light: #8770df;
$custom-dark: #000000;

JSON

{
  "hex": "#3b37cf",
  "rgb": {
    "r": 59,
    "g": 55,
    "b": 207
  },
  "hsl": {
    "h": 241.579,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.45512,
    "c": 0.22343,
    "h": 274.1
  },
  "luminance": 0.08167
}

Semantic roles & 50–950 ramp

primary

#3B37CF

secondary

#D1D28F

accent

#E443E0

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3B37CF

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

Preview Lab → · Contrast checker → · Palette generator →