#31368A#31368A

#31368A is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.2% C 0.138 H 275.2°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#31368A
RGB	rgb(49, 54, 138)
HSL	hsl(237, 48%, 37%)
HSV	hsv(237, 64%, 54%)
CMYK	cmyk(64.5%, 60.9%, 0%, 45.9%)
CIE-LAB	lab(27.09, 25.55, -47.60)
CIE-LCH	lch(27.09, 54.03, 298.22°)
OKLab	oklab(38.17% 0.0124 -0.1369)
OKLCH	oklch(38.17% 0.138 275.2)
XYZ	xyz(7.1717, 5.1257, 24.6513)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31368A #8A8531

analogous

#31638A #31368A #59318A

triadic

#31368A #8A3136 #368A31

tetradic

#31368A #8A3163 #8A8531 #318A59

square

#31368A #8A3163 #8A8531 #318A59

split-complementary

#31368A #8A5931 #638A31

monochromatic

#111330 #21245D #31368A #4148B7 #6B70CA

Accessibility & contrast

On white

10.37

#31368A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#31368A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31368A

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31368A	#FFFFFF	#000000	##FFFFFF
##31368A	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003C88

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31368a;
/* rgb */ color: rgb(49, 54, 138);
/* oklch */ color: oklch(38.2% 0.138 275.2);

Tailwind

colors: {
  custom: {
    50: '#746dad',
    500: '#31368a',
    950: '#000000',
  },
}

SCSS

$custom: #31368a;
$custom-light: #746dad;
$custom-dark: #000000;

JSON

{
  "hex": "#31368a",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 138
  },
  "hsl": {
    "h": 236.629,
    "s": 47.594,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38168,
    "c": 0.13751,
    "h": 275.2
  },
  "luminance": 0.05126
}

Semantic roles & 50–950 ramp

primary

#31368A

secondary

#B2AE65

accent

#D051D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #31368A

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

Preview Lab → · Contrast checker → · Palette generator →