#3137AE#3137AE

#3137AE is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.185 H 272.8°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#3137AE
RGB	rgb(49, 55, 174)
HSL	hsl(237, 56%, 44%)
HSV	hsv(237, 72%, 68%)
CMYK	cmyk(71.8%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(30.50, 37.73, -63.95)
CIE-LCH	lch(30.50, 74.25, 300.54°)
OKLab	oklab(41.64% 0.0092 -0.1849)
OKLCH	oklch(41.64% 0.185 272.8)
XYZ	xyz(10.2702, 6.4403, 40.7380)
Luminance	0.0644 (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

#3137AE #AEA831

analogous

#3175AE #3137AE #6931AE

triadic

#3137AE #AE3137 #37AE31

tetradic

#3137AE #AE3175 #AEA831 #31AE69

square

#3137AE #AE3175 #AEA831 #31AE69

split-complementary

#3137AE #AE6931 #75AE31

monochromatic

#16194E #24287E #3137AE #4F55CD #7F83DB

Accessibility & contrast

On white

9.18

#3137AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3137AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3137AE

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3137AE	#FFFFFF	#000000	##FFFFFF
##3137AE	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0042AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3137ae;
/* rgb */ color: rgb(49, 55, 174);
/* oklch */ color: oklch(41.6% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#7b6ec7',
    500: '#3137ae',
    950: '#000000',
  },
}

SCSS

$custom: #3137ae;
$custom-light: #7b6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3137ae",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 237.12,
    "s": 56.054,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41638,
    "c": 0.1851,
    "h": 272.8
  },
  "luminance": 0.06441
}

Semantic roles & 50–950 ramp

primary

#3137AE

secondary

#C4C077

accent

#D848DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3137AE

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

Preview Lab → · Contrast checker → · Palette generator →