#312F80#312F80

#312F80 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.133 H 278.5°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#312F80
RGB	rgb(49, 47, 128)
HSL	hsl(241, 46%, 34%)
HSV	hsv(241, 63%, 50%)
CMYK	cmyk(61.7%, 63.3%, 0%, 49.8%)
CIE-LAB	lab(24.46, 26.63, -45.63)
CIE-LCH	lch(24.46, 52.83, 300.27°)
OKLab	oklab(35.97% 0.0196 -0.1312)
OKLCH	oklch(35.97% 0.133 278.5)
XYZ	xyz(6.1782, 4.2441, 20.9115)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312F80 #7E802F

analogous

#2F5680 #312F80 #5A2F80

triadic

#312F80 #80312F #2F8031

tetradic

#312F80 #802F56 #7E802F #2F805A

square

#312F80 #802F56 #7E802F #2F805A

split-complementary

#312F80 #805A2F #56802F

monochromatic

#0F0E26 #201F53 #312F80 #423FAD #6663C6

Accessibility & contrast

On white

11.36

#312F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#312F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312F80

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312F80	#FFFFFF	#000000	##FFFFFF
##312F80	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D83

Deuteranopia (green-blind)

#00377E

Tritanopia (blue-blind)

#004352

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312f80;
/* rgb */ color: rgb(49, 47, 128);
/* oklch */ color: oklch(36.0% 0.133 278.5);

Tailwind

colors: {
  custom: {
    50: '#7267a6',
    500: '#312f80',
    950: '#000000',
  },
}

SCSS

$custom: #312f80;
$custom-light: #7267a6;
$custom-dark: #000000;

JSON

{
  "hex": "#312f80",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 128
  },
  "hsl": {
    "h": 241.481,
    "s": 46.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.35972,
    "c": 0.13265,
    "h": 278.5
  },
  "luminance": 0.04245
}

Semantic roles & 50–950 ramp

primary

#312F80

secondary

#ABAD5E

accent

#D652D3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #312F80

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

Preview Lab → · Contrast checker → · Palette generator →