#3137C4#3137C4

#3137C4 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.213 H 271.7°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#3137C4
RGB	rgb(49, 55, 196)
HSL	hsl(238, 60%, 48%)
HSV	hsv(238, 75%, 77%)
CMYK	cmyk(75%, 71.9%, 0%, 23.1%)
CIE-LAB	lab(32.63, 45.27, -73.45)
CIE-LCH	lch(32.63, 86.28, 301.65°)
OKLab	oklab(43.82% 0.0063 -0.2126)
OKLCH	oklch(43.82% 0.213 271.7)
XYZ	xyz(12.5932, 7.3695, 52.9726)
Luminance	0.0737 (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

#3137C4 #C4BE31

analogous

#3180C4 #3137C4 #7431C4

triadic

#3137C4 #C43137 #37C431

tetradic

#3137C4 #C43180 #C4BE31 #31C474

square

#3137C4 #C43180 #C4BE31 #31C474

split-complementary

#3137C4 #C47431 #80C431

monochromatic

#191C62 #252993 #3137C4 #5C61D6 #8D90E2

Accessibility & contrast

On white

8.49

#3137C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3137C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3137C4

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3137C4	#FFFFFF	#000000	##FFFFFF
##3137C4	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C8

Deuteranopia (green-blind)

#0046C1

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3137c4;
/* rgb */ color: rgb(49, 55, 196);
/* oklch */ color: oklch(43.8% 0.213 271.7);

Tailwind

colors: {
  custom: {
    50: '#806fd7',
    500: '#3137c4',
    950: '#000000',
  },
}

SCSS

$custom: #3137c4;
$custom-light: #806fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3137c4",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 196
  },
  "hsl": {
    "h": 237.551,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4382,
    "c": 0.21268,
    "h": 271.7
  },
  "luminance": 0.07371
}

Semantic roles & 50–950 ramp

primary

#3137C4

secondary

#CDCA84

accent

#DD45E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3137C4

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

Preview Lab → · Contrast checker → · Palette generator →