#312688#312688

#312688 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.2% C 0.155 H 279.9°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#312688
RGB	rgb(49, 38, 136)
HSL	hsl(247, 56%, 34%)
HSV	hsv(247, 72%, 53%)
CMYK	cmyk(64%, 72.1%, 0%, 46.7%)
CIE-LAB	lab(23.05, 35.10, -52.95)
CIE-LCH	lch(23.05, 63.53, 303.54°)
OKLab	oklab(35.17% 0.0266 -0.1527)
OKLCH	oklch(35.17% 0.155 279.9)
XYZ	xyz(6.4023, 3.8163, 23.6870)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312688 #7D8826

analogous

#264C88 #312688 #622688

triadic

#312688 #883126 #268831

tetradic

#312688 #88264C #7D8826 #268862

square

#312688 #88264C #7D8826 #268862

split-complementary

#312688 #886226 #4C8826

monochromatic

#0F0B28 #201958 #312688 #4233B8 #6658D0

Accessibility & contrast

On white

11.91

#312688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#312688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312688

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312688	#FFFFFF	#000000	##FFFFFF
##312688	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8B

Deuteranopia (green-blind)

#003386

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #312688;
/* rgb */ color: rgb(49, 38, 136);
/* oklch */ color: oklch(35.2% 0.155 279.9);

Tailwind

colors: {
  custom: {
    50: '#7562ac',
    500: '#312688',
    950: '#000000',
  },
}

SCSS

$custom: #312688;
$custom-light: #7562ac;
$custom-dark: #000000;

JSON

{
  "hex": "#312688",
  "rgb": {
    "r": 49,
    "g": 38,
    "b": 136
  },
  "hsl": {
    "h": 246.735,
    "s": 56.322,
    "l": 34.118
  },
  "oklch": {
    "l": 0.35174,
    "c": 0.15501,
    "h": 279.9
  },
  "luminance": 0.03817
}

Semantic roles & 50–950 ramp

primary

#312688

secondary

#AAB555

accent

#E048CF

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #312688

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

Preview Lab → · Contrast checker → · Palette generator →