#31479C#31479C

#31479C is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.141 H 268.8°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#31479C
RGB	rgb(49, 71, 156)
HSL	hsl(228, 52%, 40%)
HSV	hsv(228, 69%, 61%)
CMYK	cmyk(68.6%, 54.5%, 0%, 38.8%)
CIE-LAB	lab(33.05, 20.78, -48.97)
CIE-LCH	lch(33.05, 53.19, 293.00°)
OKLab	oklab(43.06% -0.0028 -0.1407)
OKLCH	oklch(43.06% 0.141 268.8)
XYZ	xyz(9.5186, 7.5588, 32.4034)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31479C #9C8631

analogous

#317C9C #31479C #51319C

triadic

#31479C #9C3147 #479C31

tetradic

#31479C #9C317C #9C8631 #319C51

square

#31479C #9C317C #9C8631 #319C51

split-complementary

#31479C #9C5131 #7C9C31

monochromatic

#141D3F #22326D #31479C #4560C5 #7488D3

Accessibility & contrast

On white

8.36

#31479C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#31479C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31479C

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31479C	#FFFFFF	#000000	##FFFFFF
##31479C	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A539F

Deuteranopia (green-blind)

#00499A

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #31479c;
/* rgb */ color: rgb(49, 71, 156);
/* oklch */ color: oklch(43.1% 0.141 268.8);

Tailwind

colors: {
  custom: {
    50: '#7679ba',
    500: '#31479c',
    950: '#000000',
  },
}

SCSS

$custom: #31479c;
$custom-light: #7679ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31479c",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 156
  },
  "hsl": {
    "h": 227.664,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43057,
    "c": 0.14078,
    "h": 268.8
  },
  "luminance": 0.0756
}

Semantic roles & 50–950 ramp

primary

#31479C

secondary

#BBAB6D

accent

#BE4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #31479C

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

Preview Lab → · Contrast checker → · Palette generator →