#312DB9#312DB9

#312DB9 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.2% C 0.209 H 273.5°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#312DB9
RGB	rgb(49, 45, 185)
HSL	hsl(242, 61%, 45%)
HSV	hsv(242, 76%, 73%)
CMYK	cmyk(73.5%, 75.7%, 0%, 27.5%)
CIE-LAB	lab(29.49, 47.27, -72.15)
CIE-LCH	lch(29.49, 86.26, 303.23°)
OKLab	oklab(41.25% 0.0128 -0.2087)
OKLCH	oklch(41.25% 0.209 273.5)
XYZ	xyz(10.9590, 6.0314, 46.4762)
Luminance	0.0603 (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

#312DB9 #B5B92D

analogous

#2D6FB9 #312DB9 #772DB9

triadic

#312DB9 #B9312D #2DB931

tetradic

#312DB9 #B92D6F #B5B92D #2DB977

square

#312DB9 #B92D6F #B5B92D #2DB977

split-complementary

#312DB9 #B9772D #6FB92D

monochromatic

#171557 #242188 #312DB9 #534FD4 #8380E0

Accessibility & contrast

On white

9.52

#312DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#312DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB9

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB9	#FFFFFF	#000000	##FFFFFF
##312DB9	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBD

Deuteranopia (green-blind)

#003FB7

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312db9;
/* rgb */ color: rgb(49, 45, 185);
/* oklch */ color: oklch(41.2% 0.209 273.5);

Tailwind

colors: {
  custom: {
    50: '#7f68cf',
    500: '#312db9',
    950: '#000000',
  },
}

SCSS

$custom: #312db9;
$custom-light: #7f68cf;
$custom-dark: #000000;

JSON

{
  "hex": "#312db9",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 185
  },
  "hsl": {
    "h": 241.714,
    "s": 60.87,
    "l": 45.098
  },
  "oklch": {
    "l": 0.41249,
    "c": 0.20914,
    "h": 273.5
  },
  "luminance": 0.06033
}

Semantic roles & 50–950 ramp

primary

#312DB9

secondary

#C7C979

accent

#E444DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312DB9

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

Preview Lab → · Contrast checker → · Palette generator →