#31358E#31358E

#31358E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.144 H 275.3°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#31358E
RGB	rgb(49, 53, 142)
HSL	hsl(237, 49%, 37%)
HSV	hsv(237, 65%, 56%)
CMYK	cmyk(65.5%, 62.7%, 0%, 44.3%)
CIE-LAB	lab(27.16, 27.66, -49.96)
CIE-LCH	lch(27.16, 57.11, 298.97°)
OKLab	oklab(38.32% 0.0133 -0.1439)
OKLCH	oklch(38.32% 0.145 275.3)
XYZ	xyz(7.4206, 5.1515, 26.1892)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31358E #8E8A31

analogous

#31648E #31358E #5B318E

triadic

#31358E #8E3135 #358E31

tetradic

#31358E #8E3164 #8E8A31 #318E5B

square

#31358E #8E3164 #8E8A31 #318E5B

split-complementary

#31358E #8E5B31 #648E31

monochromatic

#121333 #212461 #31358E #4146BB #6D71CD

Accessibility & contrast

On white

10.34

#31358E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#31358E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31358E

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31358E	#FFFFFF	#000000	##FFFFFF
##31358E	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004491

Deuteranopia (green-blind)

#003C8C

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31358e;
/* rgb */ color: rgb(49, 53, 142);
/* oklch */ color: oklch(38.3% 0.144 275.3);

Tailwind

colors: {
  custom: {
    50: '#746cb0',
    500: '#31358e',
    950: '#000000',
  },
}

SCSS

$custom: #31358e;
$custom-light: #746cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#31358e",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 142
  },
  "hsl": {
    "h": 237.419,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38325,
    "c": 0.1445,
    "h": 275.3
  },
  "luminance": 0.05152
}

Semantic roles & 50–950 ramp

primary

#31358E

secondary

#B4B167

accent

#D250D8

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #31358E

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

Preview Lab → · Contrast checker → · Palette generator →