#31368F#31368F

#31368F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.6% C 0.145 H 274.9°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#31368F
RGB	rgb(49, 54, 143)
HSL	hsl(237, 49%, 38%)
HSV	hsv(237, 66%, 56%)
CMYK	cmyk(65.7%, 62.2%, 0%, 43.9%)
CIE-LAB	lab(27.50, 27.36, -50.03)
CIE-LCH	lch(27.50, 57.02, 298.67°)
OKLab	oklab(38.6% 0.0123 -0.1441)
OKLCH	oklch(38.6% 0.145 274.9)
XYZ	xyz(7.5421, 5.2738, 26.6018)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31368F #8F8A31

analogous

#31658F #31368F #5B318F

triadic

#31368F #8F3136 #368F31

tetradic

#31368F #8F3165 #8F8A31 #318F5B

square

#31368F #8F3165 #8F8A31 #318F5B

split-complementary

#31368F #8F5B31 #658F31

monochromatic

#121434 #212561 #31368F #4147BD #6D72CD

Accessibility & contrast

On white

10.22

#31368F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#31368F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31368F

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31368F	#FFFFFF	#000000	##FFFFFF
##31368F	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#004C5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #31368f;
/* rgb */ color: rgb(49, 54, 143);
/* oklch */ color: oklch(38.6% 0.145 274.9);

Tailwind

colors: {
  custom: {
    50: '#756db1',
    500: '#31368f',
    950: '#000000',
  },
}

SCSS

$custom: #31368f;
$custom-light: #756db1;
$custom-dark: #000000;

JSON

{
  "hex": "#31368f",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 143
  },
  "hsl": {
    "h": 236.809,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38601,
    "c": 0.14461,
    "h": 274.9
  },
  "luminance": 0.05274
}

Semantic roles & 50–950 ramp

primary

#31368F

secondary

#B5B167

accent

#D14FD9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #31368F

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

Preview Lab → · Contrast checker → · Palette generator →