#312D84#312D84

#312D84 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.141 H 278.6°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#312D84
RGB	rgb(49, 45, 132)
HSL	hsl(243, 49%, 35%)
HSV	hsv(243, 66%, 52%)
CMYK	cmyk(62.9%, 65.9%, 0%, 48.2%)
CIE-LAB	lab(24.31, 29.35, -48.40)
CIE-LCH	lch(24.31, 56.60, 301.23°)
OKLab	oklab(35.97% 0.0212 -0.1393)
OKLCH	oklch(35.97% 0.141 278.6)
XYZ	xyz(6.3685, 4.1952, 22.2995)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D84 #80842D

analogous

#2D5484 #312D84 #5D2D84

triadic

#312D84 #84312D #2D8431

tetradic

#312D84 #842D54 #80842D #2D845D

square

#312D84 #842D54 #80842D #2D845D

split-complementary

#312D84 #845D2D #54842D

monochromatic

#0F0E29 #201D56 #312D84 #423DB2 #6762C9

Accessibility & contrast

On white

11.42

#312D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#312D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D84

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D84	#FFFFFF	#000000	##FFFFFF
##312D84	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D87

Deuteranopia (green-blind)

#003682

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312d84;
/* rgb */ color: rgb(49, 45, 132);
/* oklch */ color: oklch(36.0% 0.141 278.6);

Tailwind

colors: {
  custom: {
    50: '#7366a9',
    500: '#312d84',
    950: '#000000',
  },
}

SCSS

$custom: #312d84;
$custom-light: #7366a9;
$custom-dark: #000000;

JSON

{
  "hex": "#312d84",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 132
  },
  "hsl": {
    "h": 242.759,
    "s": 49.153,
    "l": 34.706
  },
  "oklch": {
    "l": 0.35965,
    "c": 0.14094,
    "h": 278.6
  },
  "luminance": 0.04196
}

Semantic roles & 50–950 ramp

primary

#312D84

secondary

#ACB05D

accent

#D94FD2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312D84

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

Preview Lab → · Contrast checker → · Palette generator →