#312D85#312D85

#312D85 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.1% C 0.142 H 278.5°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#312D85
RGB	rgb(49, 45, 133)
HSL	hsl(243, 49%, 35%)
HSV	hsv(243, 66%, 52%)
CMYK	cmyk(63.2%, 66.2%, 0%, 47.8%)
CIE-LAB	lab(24.39, 29.70, -48.88)
CIE-LCH	lch(24.39, 57.19, 301.28°)
OKLab	oklab(36.06% 0.0211 -0.1408)
OKLCH	oklch(36.06% 0.142 278.5)
XYZ	xyz(6.4373, 4.2227, 22.6616)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D85 #81852D

analogous

#2D5585 #312D85 #5D2D85

triadic

#312D85 #85312D #2D8531

tetradic

#312D85 #852D55 #81852D #2D855D

square

#312D85 #852D55 #81852D #2D855D

split-complementary

#312D85 #855D2D #55852D

monochromatic

#0F0E2A #201E57 #312D85 #423CB3 #6762CA

Accessibility & contrast

On white

11.38

#312D85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#312D85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D85

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D85	#FFFFFF	#000000	##FFFFFF
##312D85	1.00	11.38	1.84	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E88

Deuteranopia (green-blind)

#003683

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312d85;
/* rgb */ color: rgb(49, 45, 133);
/* oklch */ color: oklch(36.1% 0.142 278.5);

Tailwind

colors: {
  custom: {
    50: '#7366a9',
    500: '#312d85',
    950: '#000000',
  },
}

SCSS

$custom: #312d85;
$custom-light: #7366a9;
$custom-dark: #000000;

JSON

{
  "hex": "#312d85",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 133
  },
  "hsl": {
    "h": 242.727,
    "s": 49.438,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36056,
    "c": 0.14233,
    "h": 278.5
  },
  "luminance": 0.04223
}

Semantic roles & 50–950 ramp

primary

#312D85

secondary

#ADB05D

accent

#D94FD3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312D85

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

Preview Lab → · Contrast checker → · Palette generator →