#312F83#312F83

#312F83 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.137 H 278.1°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#312F83
RGB	rgb(49, 47, 131)
HSL	hsl(241, 47%, 35%)
HSV	hsv(241, 64%, 51%)
CMYK	cmyk(62.6%, 64.1%, 0%, 48.6%)
CIE-LAB	lab(24.72, 27.69, -47.10)
CIE-LCH	lch(24.72, 54.64, 300.45°)
OKLab	oklab(36.24% 0.0194 -0.1355)
OKLCH	oklch(36.24% 0.137 278.1)
XYZ	xyz(6.3786, 4.3242, 21.9669)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312F83 #81832F

analogous

#2F5783 #312F83 #5B2F83

triadic

#312F83 #83312F #2F8331

tetradic

#312F83 #832F57 #81832F #2F835B

square

#312F83 #832F57 #81832F #2F835B

split-complementary

#312F83 #835B2F #57832F

monochromatic

#0F0F29 #201F56 #312F83 #423FB0 #6765C8

Accessibility & contrast

On white

11.26

#312F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#312F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312F83

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312F83	#FFFFFF	#000000	##FFFFFF
##312F83	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E86

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004454

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #312f83;
/* rgb */ color: rgb(49, 47, 131);
/* oklch */ color: oklch(36.2% 0.137 278.1);

Tailwind

colors: {
  custom: {
    50: '#7368a8',
    500: '#312f83',
    950: '#000000',
  },
}

SCSS

$custom: #312f83;
$custom-light: #7368a8;
$custom-dark: #000000;

JSON

{
  "hex": "#312f83",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 131
  },
  "hsl": {
    "h": 241.429,
    "s": 47.191,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36237,
    "c": 0.13691,
    "h": 278.1
  },
  "luminance": 0.04325
}

Semantic roles & 50–950 ramp

primary

#312F83

secondary

#ADAF5F

accent

#D751D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312F83

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

Preview Lab → · Contrast checker → · Palette generator →