#31279D#31279D

#31279D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.5% C 0.181 H 276.9°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#31279D
RGB	rgb(49, 39, 157)
HSL	hsl(245, 60%, 38%)
HSV	hsv(245, 75%, 62%)
CMYK	cmyk(68.8%, 75.2%, 0%, 38.4%)
CIE-LAB	lab(25.37, 41.48, -62.11)
CIE-LCH	lch(25.37, 74.68, 303.73°)
OKLab	oklab(37.46% 0.0217 -0.1795)
OKLCH	oklch(37.46% 0.181 276.9)
XYZ	xyz(8.0760, 4.5376, 32.3420)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31279D #939D27

analogous

#27589D #31279D #6C279D

triadic

#31279D #9D3127 #279D31

tetradic

#31279D #9D2758 #939D27 #279D6C

square

#31279D #9D2758 #939D27 #279D6C

split-complementary

#31279D #9D6C27 #589D27

monochromatic

#120F3B #221B6C #31279D #4135CD #6F66D9

Accessibility & contrast

On white

11.01

#31279D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#31279D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31279D

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31279D	#FFFFFF	#000000	##FFFFFF
##31279D	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A0

Deuteranopia (green-blind)

#00379B

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #31279d;
/* rgb */ color: rgb(49, 39, 157);
/* oklch */ color: oklch(37.5% 0.181 276.9);

Tailwind

colors: {
  custom: {
    50: '#7963bb',
    500: '#31279d',
    950: '#000000',
  },
}

SCSS

$custom: #31279d;
$custom-light: #7963bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31279d",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 157
  },
  "hsl": {
    "h": 245.085,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37462,
    "c": 0.18077,
    "h": 276.9
  },
  "luminance": 0.04538
}

Semantic roles & 50–950 ramp

primary

#31279D

secondary

#B7BF61

accent

#E344D6

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #31279D

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

Preview Lab → · Contrast checker → · Palette generator →