#31348C#31348C

#31348C is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.143 H 275.7°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#31348C
RGB	rgb(49, 52, 140)
HSL	hsl(238, 48%, 37%)
HSV	hsv(238, 65%, 55%)
CMYK	cmyk(65%, 62.9%, 0%, 45.1%)
CIE-LAB	lab(26.74, 27.60, -49.41)
CIE-LCH	lch(26.74, 56.60, 299.18°)
OKLab	oklab(37.96% 0.0142 -0.1423)
OKLCH	oklch(37.96% 0.143 275.7)
XYZ	xyz(7.2267, 5.0018, 25.3905)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31348C #8C8931

analogous

#31628C #31348C #5C318C

triadic

#31348C #8C3134 #348C31

tetradic

#31348C #8C3162 #8C8931 #318C5C

square

#31348C #8C3162 #8C8931 #318C5C

split-complementary

#31348C #8C5C31 #628C31

monochromatic

#111231 #21235F #31348C #4145B9 #6C6FCC

Accessibility & contrast

On white

10.50

#31348C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#31348C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31348C

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31348C	#FFFFFF	#000000	##FFFFFF
##31348C	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438F

Deuteranopia (green-blind)

#003B8A

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #31348c;
/* rgb */ color: rgb(49, 52, 140);
/* oklch */ color: oklch(38.0% 0.143 275.7);

Tailwind

colors: {
  custom: {
    50: '#746bae',
    500: '#31348c',
    950: '#000000',
  },
}

SCSS

$custom: #31348c;
$custom-light: #746bae;
$custom-dark: #000000;

JSON

{
  "hex": "#31348c",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 140
  },
  "hsl": {
    "h": 238.022,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37961,
    "c": 0.143,
    "h": 275.7
  },
  "luminance": 0.05002
}

Semantic roles & 50–950 ramp

primary

#31348C

secondary

#B3B066

accent

#D350D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #31348C

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

Preview Lab → · Contrast checker → · Palette generator →