#3137A2#3137A2

#3137A2 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.169 H 273.5°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#3137A2
RGB	rgb(49, 55, 162)
HSL	hsl(237, 54%, 41%)
HSV	hsv(237, 70%, 64%)
CMYK	cmyk(69.8%, 66%, 0%, 36.5%)
CIE-LAB	lab(29.39, 33.51, -58.54)
CIE-LCH	lch(29.39, 67.45, 299.78°)
OKLab	oklab(40.5% 0.0104 -0.169)
OKLCH	oklch(40.5% 0.169 273.5)
XYZ	xyz(9.1522, 5.9931, 34.8499)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.06

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3137A2 #A29C31

analogous

#3170A2 #3137A2 #6431A2

triadic

#3137A2 #A23137 #37A231

tetradic

#3137A2 #A23170 #A29C31 #31A264

square

#3137A2 #A23170 #A29C31 #31A264

split-complementary

#3137A2 #A26431 #70A231

monochromatic

#151744 #232773 #3137A2 #484FC8 #777CD6

Accessibility & contrast

On white

9.55

#3137A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3137A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3137A2

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3137A2	#FFFFFF	#000000	##FFFFFF
##3137A2	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA5

Deuteranopia (green-blind)

#0040A0

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3137a2;
/* rgb */ color: rgb(49, 55, 162);
/* oklch */ color: oklch(40.5% 0.169 273.5);

Tailwind

colors: {
  custom: {
    50: '#796ebe',
    500: '#3137a2',
    950: '#000000',
  },
}

SCSS

$custom: #3137a2;
$custom-light: #796ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#3137a2",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 162
  },
  "hsl": {
    "h": 236.814,
    "s": 53.555,
    "l": 41.373
  },
  "oklch": {
    "l": 0.405,
    "c": 0.16936,
    "h": 273.5
  },
  "luminance": 0.05994
}

Semantic roles & 50–950 ramp

primary

#3137A2

secondary

#BEBA71

accent

#D54BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3137A2

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

Preview Lab → · Contrast checker → · Palette generator →