#312DB5#312DB5

#312DB5 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 40.8% C 0.204 H 273.8°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#312DB5
RGB	rgb(49, 45, 181)
HSL	hsl(242, 60%, 44%)
HSV	hsv(242, 75%, 71%)
CMYK	cmyk(72.9%, 75.1%, 0%, 29%)
CIE-LAB	lab(29.07, 45.97, -70.48)
CIE-LCH	lch(29.07, 84.15, 303.12°)
OKLab	oklab(40.83% 0.0136 -0.2039)
OKLCH	oklch(40.83% 0.204 273.8)
XYZ	xyz(10.5427, 5.8649, 44.2835)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DB5 #B1B52D

analogous

#2D6DB5 #312DB5 #752DB5

triadic

#312DB5 #B5312D #2DB531

tetradic

#312DB5 #B52D6D #B1B52D #2DB575

square

#312DB5 #B52D6D #B1B52D #2DB575

split-complementary

#312DB5 #B5752D #6DB52D

monochromatic

#161553 #242184 #312DB5 #514DD3 #807EDF

Accessibility & contrast

On white

9.66

#312DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#312DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB5

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB5	#FFFFFF	#000000	##FFFFFF
##312DB5	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB9

Deuteranopia (green-blind)

#003EB3

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312db5;
/* rgb */ color: rgb(49, 45, 181);
/* oklch */ color: oklch(40.8% 0.204 273.8);

Tailwind

colors: {
  custom: {
    50: '#7e68cc',
    500: '#312db5',
    950: '#000000',
  },
}

SCSS

$custom: #312db5;
$custom-light: #7e68cc;
$custom-dark: #000000;

JSON

{
  "hex": "#312db5",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 181
  },
  "hsl": {
    "h": 241.765,
    "s": 60.177,
    "l": 44.314
  },
  "oklch": {
    "l": 0.40825,
    "c": 0.20432,
    "h": 273.8
  },
  "luminance": 0.05866
}

Semantic roles & 50–950 ramp

primary

#312DB5

secondary

#C5C776

accent

#E344DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312DB5

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

Preview Lab → · Contrast checker → · Palette generator →