#31358F#31358F

#31358F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.4% C 0.146 H 275.2°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#31358F
RGB	rgb(49, 53, 143)
HSL	hsl(237, 49%, 38%)
HSV	hsv(237, 66%, 56%)
CMYK	cmyk(65.7%, 62.9%, 0%, 43.9%)
CIE-LAB	lab(27.25, 28.01, -50.44)
CIE-LCH	lch(27.25, 57.70, 299.05°)
OKLab	oklab(38.41% 0.0132 -0.1453)
OKLCH	oklch(38.41% 0.146 275.2)
XYZ	xyz(7.4960, 5.1817, 26.5864)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31358F #8F8B31

analogous

#31648F #31358F #5C318F

triadic

#31358F #8F3135 #358F31

tetradic

#31358F #8F3164 #8F8B31 #318F5C

square

#31358F #8F3164 #8F8B31 #318F5C

split-complementary

#31358F #8F5C31 #648F31

monochromatic

#121334 #212461 #31358F #4146BD #6D71CD

Accessibility & contrast

On white

10.31

#31358F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#31358F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31358F

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31358F	#FFFFFF	#000000	##FFFFFF
##31358F	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)

#004592

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #31358f;
/* rgb */ color: rgb(49, 53, 143);
/* oklch */ color: oklch(38.4% 0.146 275.2);

Tailwind

colors: {
  custom: {
    50: '#756cb1',
    500: '#31358f',
    950: '#000000',
  },
}

SCSS

$custom: #31358f;
$custom-light: #756cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#31358f",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 143
  },
  "hsl": {
    "h": 237.447,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38413,
    "c": 0.1459,
    "h": 275.2
  },
  "luminance": 0.05182
}

Semantic roles & 50–950 ramp

primary

#31358F

secondary

#B5B167

accent

#D34FD9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #31358F

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

Preview Lab → · Contrast checker → · Palette generator →