#312D73#312D73

#312D73 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.5% C 0.117 H 280.9°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#312D73
RGB	rgb(49, 45, 115)
HSL	hsl(243, 44%, 31%)
HSV	hsv(243, 61%, 45%)
CMYK	cmyk(57.4%, 60.9%, 0%, 54.9%)
CIE-LAB	lab(22.89, 23.39, -39.94)
CIE-LCH	lch(22.89, 46.28, 300.36°)
OKLab	oklab(34.48% 0.0221 -0.1145)
OKLCH	oklch(34.48% 0.117 280.9)
XYZ	xyz(5.2986, 3.7672, 16.6643)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D73 #6F732D

analogous

#2D4C73 #312D73 #542D73

triadic

#312D73 #73312D #2D7331

tetradic

#312D73 #732D4C #6F732D #2D7354

square

#312D73 #732D4C #6F732D #2D7354

split-complementary

#312D73 #73542D #4C732D

monochromatic

#0C0B1B #1E1C47 #312D73 #443E9F #615BBF

Accessibility & contrast

On white

11.98

#312D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#312D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D73

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D73	#FFFFFF	#000000	##FFFFFF
##312D73	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003975

Deuteranopia (green-blind)

#003472

Tritanopia (blue-blind)

#123D4B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #312d73;
/* rgb */ color: rgb(49, 45, 115);
/* oklch */ color: oklch(34.5% 0.117 280.9);

Tailwind

colors: {
  custom: {
    50: '#70669c',
    500: '#312d73',
    950: '#000000',
  },
}

SCSS

$custom: #312d73;
$custom-light: #70669c;
$custom-dark: #000000;

JSON

{
  "hex": "#312d73",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 115
  },
  "hsl": {
    "h": 243.429,
    "s": 43.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34477,
    "c": 0.11659,
    "h": 280.9
  },
  "luminance": 0.03768
}

Semantic roles & 50–950 ramp

primary

#312D73

secondary

#A0A457

accent

#D354CC

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #312D73

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

Preview Lab → · Contrast checker → · Palette generator →