#31318E#31318E

#31318E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.150 H 276.4°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#31318E
RGB	rgb(49, 49, 142)
HSL	hsl(240, 49%, 37%)
HSV	hsv(240, 65%, 56%)
CMYK	cmyk(65.5%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(26.16, 30.27, -51.59)
CIE-LCH	lch(26.16, 59.82, 300.40°)
OKLab	oklab(37.59% 0.0168 -0.1487)
OKLCH	oklch(37.59% 0.15 276.4)
XYZ	xyz(7.2458, 4.8020, 26.1310)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31318E #8E8E31

analogous

#31608E #31318E #60318E

triadic

#31318E #8E3131 #318E31

tetradic

#31318E #8E3160 #8E8E31 #318E60

square

#31318E #8E3160 #8E8E31 #318E60

split-complementary

#31318E #8E6031 #608E31

monochromatic

#121233 #212161 #31318E #4141BB #6D6DCD

Accessibility & contrast

On white

10.71

#31318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#31318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31318E

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31318E	#FFFFFF	#000000	##FFFFFF
##31318E	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#003A8C

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #31318e;
/* rgb */ color: rgb(49, 49, 142);
/* oklch */ color: oklch(37.6% 0.150 276.4);

Tailwind

colors: {
  custom: {
    50: '#7569b0',
    500: '#31318e',
    950: '#000000',
  },
}

SCSS

$custom: #31318e;
$custom-light: #7569b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31318e",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 240,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37592,
    "c": 0.14965,
    "h": 276.4
  },
  "luminance": 0.04803
}

Semantic roles & 50–950 ramp

primary

#31318E

secondary

#B4B467

accent

#D850D8

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #31318E

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

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