#31319E#31319E

#31319E is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.1% C 0.171 H 275.1°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#31319E
RGB	rgb(49, 49, 158)
HSL	hsl(240, 53%, 41%)
HSV	hsv(240, 69%, 62%)
CMYK	cmyk(69%, 69%, 0%, 38%)
CIE-LAB	lab(27.62, 35.88, -59.02)
CIE-LCH	lch(27.62, 69.07, 301.29°)
OKLab	oklab(39.1% 0.0151 -0.1705)
OKLCH	oklch(39.1% 0.171 275.1)
XYZ	xyz(8.5345, 5.3174, 32.9177)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31319E #9E9E31

analogous

#31679E #31319E #67319E

triadic

#31319E #9E3131 #319E31

tetradic

#31319E #9E3167 #9E9E31 #319E67

square

#31319E #9E3167 #9E9E31 #319E67

split-complementary

#31319E #9E6731 #679E31

monochromatic

#141441 #23236F #31319E #4646C6 #7575D4

Accessibility & contrast

On white

10.18

#31319E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#31319E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31319E

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31319E	#FFFFFF	#000000	##FFFFFF
##31319E	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A1

Deuteranopia (green-blind)

#003C9C

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #31319e;
/* rgb */ color: rgb(49, 49, 158);
/* oklch */ color: oklch(39.1% 0.171 275.1);

Tailwind

colors: {
  custom: {
    50: '#786abc',
    500: '#31319e',
    950: '#000000',
  },
}

SCSS

$custom: #31319e;
$custom-light: #786abc;
$custom-dark: #000000;

JSON

{
  "hex": "#31319e",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 158
  },
  "hsl": {
    "h": 240,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39099,
    "c": 0.17115,
    "h": 275.1
  },
  "luminance": 0.05318
}

Semantic roles & 50–950 ramp

primary

#31319E

secondary

#BCBC6E

accent

#DC4CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #31319E

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

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