#31369C#31369C

#31369C is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.163 H 274.1°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#31369C
RGB	rgb(49, 54, 156)
HSL	hsl(237, 52%, 40%)
HSV	hsv(237, 69%, 61%)
CMYK	cmyk(68.6%, 65.4%, 0%, 38.8%)
CIE-LAB	lab(28.62, 32.01, -56.17)
CIE-LCH	lch(28.62, 64.65, 299.68°)
OKLab	oklab(39.77% 0.0116 -0.1621)
OKLCH	oklch(39.77% 0.163 274.1)
XYZ	xyz(8.5845, 5.6908, 32.0921)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31369C #9C9731

analogous

#316C9C #31369C #61319C

triadic

#31369C #9C3136 #369C31

tetradic

#31369C #9C316C #9C9731 #319C61

square

#31369C #9C316C #9C9731 #319C61

split-complementary

#31369C #9C6131 #6C9C31

monochromatic

#14163F #22266D #31369C #454BC5 #7478D3

Accessibility & contrast

On white

9.82

#31369C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#31369C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31369C

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31369C	#FFFFFF	#000000	##FFFFFF
##31369C	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #31369c;
/* rgb */ color: rgb(49, 54, 156);
/* oklch */ color: oklch(39.8% 0.163 274.1);

Tailwind

colors: {
  custom: {
    50: '#776dba',
    500: '#31369c',
    950: '#000000',
  },
}

SCSS

$custom: #31369c;
$custom-light: #776dba;
$custom-dark: #000000;

JSON

{
  "hex": "#31369c",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 156
  },
  "hsl": {
    "h": 237.196,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39768,
    "c": 0.16251,
    "h": 274.1
  },
  "luminance": 0.05692
}

Semantic roles & 50–950 ramp

primary

#31369C

secondary

#BBB86D

accent

#D54CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31369C

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

Preview Lab → · Contrast checker → · Palette generator →