#3137E2#3137E2

#3137E2 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.9% C 0.248 H 270.4°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#3137E2
RGB	rgb(49, 55, 226)
HSL	hsl(238, 75%, 54%)
HSV	hsv(238, 78%, 89%)
CMYK	cmyk(78.3%, 75.7%, 0%, 11.4%)
CIE-LAB	lab(35.74, 55.08, -85.67)
CIE-LCH	lch(35.74, 101.85, 302.74°)
OKLab	oklab(46.95% 0.0016 -0.2481)
OKLCH	oklch(46.95% 0.248 270.4)
XYZ	xyz(16.3556, 8.8745, 72.7877)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.39

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3137E2 #E2DC31

analogous

#3190E2 #3137E2 #8431E2

triadic

#3137E2 #E23137 #37E231

tetradic

#3137E2 #E23190 #E2DC31 #31E284

square

#3137E2 #E23190 #E2DC31 #31E284

split-complementary

#3137E2 #E28431 #90E231

monochromatic

#131786 #1A20BB #3137E2 #676BEA #9C9FF1

Accessibility & contrast

On white

7.57

#3137E2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3137E2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3137E2

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3137E2	#FFFFFF	#000000	##FFFFFF
##3137E2	1.00	7.57	2.78	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DE7

Deuteranopia (green-blind)

#004BDF

Tritanopia (blue-blind)

#006A8B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3137e2;
/* rgb */ color: rgb(49, 55, 226);
/* oklch */ color: oklch(46.9% 0.248 270.4);

Tailwind

colors: {
  custom: {
    50: '#8870ed',
    500: '#3137e2',
    950: '#000000',
  },
}

SCSS

$custom: #3137e2;
$custom-light: #8870ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3137e2",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 226
  },
  "hsl": {
    "h": 237.966,
    "s": 75.319,
    "l": 53.922
  },
  "oklch": {
    "l": 0.46947,
    "c": 0.24811,
    "h": 270.4
  },
  "luminance": 0.08876
}

Semantic roles & 50–950 ramp

primary

#3137E2

secondary

#DDDB92

accent

#EC36F2

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3137E2

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

Preview Lab → · Contrast checker → · Palette generator →