#312379#312379

#312379 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.139 H 283.3°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#312379
RGB	rgb(49, 35, 121)
HSL	hsl(250, 55%, 31%)
HSV	hsv(250, 71%, 47%)
CMYK	cmyk(59.5%, 71.1%, 0%, 52.5%)
CIE-LAB	lab(20.96, 31.92, -46.90)
CIE-LCH	lch(20.96, 56.73, 304.23°)
OKLab	oklab(33.24% 0.0319 -0.135)
OKLCH	oklch(33.24% 0.139 283.3)
XYZ	xyz(5.3178, 3.2352, 18.4297)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312379 #6B7923

analogous

#234079 #312379 #5C2379

triadic

#312379 #793123 #237931

tetradic

#312379 #792340 #6B7923 #23795C

square

#312379 #792340 #6B7923 #23795C

split-complementary

#312379 #795C23 #407923

monochromatic

#0B081A #1E154A #312379 #4431A8 #604BCB

Accessibility & contrast

On white

12.75

#312379 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#312379 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312379

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312379	#FFFFFF	#000000	##FFFFFF
##312379	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357C

Deuteranopia (green-blind)

#002F77

Tritanopia (blue-blind)

#0A394B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #312379;
/* rgb */ color: rgb(49, 35, 121);
/* oklch */ color: oklch(33.2% 0.139 283.3);

Tailwind

colors: {
  custom: {
    50: '#725fa1',
    500: '#312379',
    950: '#000000',
  },
}

SCSS

$custom: #312379;
$custom-light: #725fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#312379",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 121
  },
  "hsl": {
    "h": 249.767,
    "s": 55.128,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33236,
    "c": 0.13869,
    "h": 283.3
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#312379

secondary

#9CAC4C

accent

#DE49C6

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #312379

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

Preview Lab → · Contrast checker → · Palette generator →