#312DB3#312DB3

#312DB3 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.6% C 0.202 H 274.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#312DB3
RGB	rgb(49, 45, 179)
HSL	hsl(242, 60%, 44%)
HSV	hsv(242, 75%, 70%)
CMYK	cmyk(72.6%, 74.9%, 0%, 29.8%)
CIE-LAB	lab(28.86, 45.32, -69.63)
CIE-LCH	lch(28.86, 83.08, 303.06°)
OKLab	oklab(40.61% 0.014 -0.2014)
OKLCH	oklch(40.61% 0.202 274)
XYZ	xyz(10.3390, 5.7834, 43.2105)
Luminance	0.0578 (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

#312DB3 #AFB32D

analogous

#2D6CB3 #312DB3 #742DB3

triadic

#312DB3 #B3312D #2DB331

tetradic

#312DB3 #B32D6C #AFB32D #2DB374

square

#312DB3 #B32D6C #AFB32D #2DB374

split-complementary

#312DB3 #B3742D #6CB32D

monochromatic

#161451 #242182 #312DB3 #4F4BD2 #7F7CDE

Accessibility & contrast

On white

9.74

#312DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#312DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DB3

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DB3	#FFFFFF	#000000	##FFFFFF
##312DB3	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB7

Deuteranopia (green-blind)

#003EB1

Tritanopia (blue-blind)

#00546E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312db3;
/* rgb */ color: rgb(49, 45, 179);
/* oklch */ color: oklch(40.6% 0.202 274.0);

Tailwind

colors: {
  custom: {
    50: '#7d68cb',
    500: '#312db3',
    950: '#000000',
  },
}

SCSS

$custom: #312db3;
$custom-light: #7d68cb;
$custom-dark: #000000;

JSON

{
  "hex": "#312db3",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 179
  },
  "hsl": {
    "h": 241.791,
    "s": 59.821,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40614,
    "c": 0.2019,
    "h": 274
  },
  "luminance": 0.05784
}

Semantic roles & 50–950 ramp

primary

#312DB3

secondary

#C4C775

accent

#E345DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DB3

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

Preview Lab → · Contrast checker → · Palette generator →