#31339E#31339E

#31339E is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.4% C 0.169 H 274.6°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#31339E
RGB	rgb(49, 51, 158)
HSL	hsl(239, 53%, 41%)
HSV	hsv(239, 69%, 62%)
CMYK	cmyk(69%, 67.7%, 0%, 38%)
CIE-LAB	lab(28.08, 34.63, -58.26)
CIE-LCH	lch(28.08, 67.78, 300.72°)
OKLab	oklab(39.43% 0.0137 -0.1682)
OKLCH	oklch(39.43% 0.169 274.6)
XYZ	xyz(8.6200, 5.4885, 32.9462)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31339E #9E9C31

analogous

#31699E #31339E #65319E

triadic

#31339E #9E3133 #339E31

tetradic

#31339E #9E3169 #9E9C31 #319E65

square

#31339E #9E3169 #9E9C31 #319E65

split-complementary

#31339E #9E6531 #699E31

monochromatic

#141541 #23246F #31339E #4649C6 #7577D4

Accessibility & contrast

On white

10.01

#31339E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#31339E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31339E

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31339E	#FFFFFF	#000000	##FFFFFF
##31339E	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A1

Deuteranopia (green-blind)

#003D9C

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #31339e;
/* rgb */ color: rgb(49, 51, 158);
/* oklch */ color: oklch(39.4% 0.169 274.6);

Tailwind

colors: {
  custom: {
    50: '#786bbc',
    500: '#31339e',
    950: '#000000',
  },
}

SCSS

$custom: #31339e;
$custom-light: #786bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#31339e",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 158
  },
  "hsl": {
    "h": 238.899,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39434,
    "c": 0.1688,
    "h": 274.6
  },
  "luminance": 0.05489
}

Semantic roles & 50–950 ramp

primary

#31339E

secondary

#BCBB6E

accent

#D94CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #31339E

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

Preview Lab → · Contrast checker → · Palette generator →