#31358A#31358A

#31358A is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.139 H 275.5°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#31358A
RGB	rgb(49, 53, 138)
HSL	hsl(237, 48%, 37%)
HSV	hsv(237, 64%, 54%)
CMYK	cmyk(64.5%, 61.6%, 0%, 45.9%)
CIE-LAB	lab(26.83, 26.22, -48.03)
CIE-LCH	lch(26.83, 54.72, 298.63°)
OKLab	oklab(37.98% 0.0134 -0.1382)
OKLCH	oklch(37.98% 0.139 275.5)
XYZ	xyz(7.1257, 5.0336, 24.6359)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31358A #8A8631

analogous

#31628A #31358A #5A318A

triadic

#31358A #8A3135 #358A31

tetradic

#31358A #8A3162 #8A8631 #318A5A

square

#31358A #8A3162 #8A8631 #318A5A

split-complementary

#31358A #8A5A31 #628A31

monochromatic

#111230 #21245D #31358A #4146B7 #6B6FCA

Accessibility & contrast

On white

10.46

#31358A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#31358A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31358A

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31358A	#FFFFFF	#000000	##FFFFFF
##31358A	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438D

Deuteranopia (green-blind)

#003C88

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #31358a;
/* rgb */ color: rgb(49, 53, 138);
/* oklch */ color: oklch(38.0% 0.139 275.5);

Tailwind

colors: {
  custom: {
    50: '#746cad',
    500: '#31358a',
    950: '#000000',
  },
}

SCSS

$custom: #31358a;
$custom-light: #746cad;
$custom-dark: #000000;

JSON

{
  "hex": "#31358a",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 138
  },
  "hsl": {
    "h": 237.303,
    "s": 47.594,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37976,
    "c": 0.13885,
    "h": 275.5
  },
  "luminance": 0.05034
}

Semantic roles & 50–950 ramp

primary

#31358A

secondary

#B2AE65

accent

#D151D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #31358A

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

Preview Lab → · Contrast checker → · Palette generator →