#31368C#31368C

#31368C is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.140 H 275.1°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#31368C
RGB	rgb(49, 54, 140)
HSL	hsl(237, 48%, 37%)
HSV	hsv(237, 65%, 55%)
CMYK	cmyk(65%, 61.4%, 0%, 45.1%)
CIE-LAB	lab(27.25, 26.27, -48.58)
CIE-LCH	lch(27.25, 55.23, 298.41°)
OKLab	oklab(38.34% 0.0124 -0.1398)
OKLCH	oklch(38.34% 0.14 275.1)
XYZ	xyz(7.3179, 5.1841, 25.4209)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31368C #8C8731

analogous

#31648C #31368C #59318C

triadic

#31368C #8C3136 #368C31

tetradic

#31368C #8C3164 #8C8731 #318C59

square

#31368C #8C3164 #8C8731 #318C59

split-complementary

#31368C #8C5931 #648C31

monochromatic

#111331 #21255F #31368C #4147B9 #6C71CC

Accessibility & contrast

On white

10.31

#31368C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#31368C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31368C

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31368C	#FFFFFF	#000000	##FFFFFF
##31368C	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448F

Deuteranopia (green-blind)

#003C8A

Tritanopia (blue-blind)

#004B5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31368c;
/* rgb */ color: rgb(49, 54, 140);
/* oklch */ color: oklch(38.3% 0.140 275.1);

Tailwind

colors: {
  custom: {
    50: '#746dae',
    500: '#31368c',
    950: '#000000',
  },
}

SCSS

$custom: #31368c;
$custom-light: #746dae;
$custom-dark: #000000;

JSON

{
  "hex": "#31368c",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 140
  },
  "hsl": {
    "h": 236.703,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.3834,
    "c": 0.14036,
    "h": 275.1
  },
  "luminance": 0.05185
}

Semantic roles & 50–950 ramp

primary

#31368C

secondary

#B3AF66

accent

#D050D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #31368C

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

Preview Lab → · Contrast checker → · Palette generator →