#312DB4#312DB4

#312DB4 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.7% C 0.203 H 273.9°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#312DB4
RGB	rgb(49, 45, 180)
HSL	hsl(242, 60%, 44%)
HSV	hsv(242, 75%, 71%)
CMYK	cmyk(72.8%, 75%, 0%, 29.4%)
CIE-LAB	lab(28.96, 45.65, -70.05)
CIE-LCH	lch(28.96, 83.61, 303.09°)
OKLab	oklab(40.72% 0.0138 -0.2026)
OKLCH	oklch(40.72% 0.203 273.9)
XYZ	xyz(10.4405, 5.8240, 43.7451)
Luminance	0.0583 (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

#312DB4 #B0B42D

analogous

#2D6DB4 #312DB4 #752DB4

triadic

#312DB4 #B4312D #2DB431

tetradic

#312DB4 #B42D6D #B0B42D #2DB475

square

#312DB4 #B42D6D #B0B42D #2DB475

split-complementary

#312DB4 #B4752D #6DB42D

monochromatic

#161552 #242183 #312DB4 #504CD2 #807DDE

Accessibility & contrast

On white

9.70

#312DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#312DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB4

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB4	#FFFFFF	#000000	##FFFFFF
##312DB4	1.00	9.70	2.17	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#00546E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312db4;
/* rgb */ color: rgb(49, 45, 180);
/* oklch */ color: oklch(40.7% 0.203 273.9);

Tailwind

colors: {
  custom: {
    50: '#7e68cc',
    500: '#312db4',
    950: '#000000',
  },
}

SCSS

$custom: #312db4;
$custom-light: #7e68cc;
$custom-dark: #000000;

JSON

{
  "hex": "#312db4",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 180
  },
  "hsl": {
    "h": 241.778,
    "s": 60,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40719,
    "c": 0.20312,
    "h": 273.9
  },
  "luminance": 0.05825
}

Semantic roles & 50–950 ramp

primary

#312DB4

secondary

#C5C776

accent

#E345DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #312DB4

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

Preview Lab → · Contrast checker → · Palette generator →