#312AAA#312AAA

#312AAA is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.2% C 0.194 H 275.1°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#312AAA
RGB	rgb(49, 42, 170)
HSL	hsl(243, 60%, 42%)
HSV	hsv(243, 75%, 67%)
CMYK	cmyk(71.2%, 75.3%, 0%, 33.3%)
CIE-LAB	lab(27.33, 44.05, -66.77)
CIE-LCH	lch(27.33, 79.99, 303.41°)
OKLab	oklab(39.25% 0.0173 -0.1931)
OKLCH	oklch(39.25% 0.194 275.1)
XYZ	xyz(9.3479, 5.2103, 38.5355)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AAA #A3AA2A

analogous

#2A63AA #312AAA #712AAA

triadic

#312AAA #AA312A #2AAA31

tetradic

#312AAA #AA2A63 #A3AA2A #2AAA71

square

#312AAA #AA2A63 #A3AA2A #2AAA71

split-complementary

#312AAA #AA712A #63AA2A

monochromatic

#151248 #231E79 #312AAA #4941D0 #7872DC

Accessibility & contrast

On white

10.28

#312AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#312AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AAA

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AAA	#FFFFFF	#000000	##FFFFFF
##312AAA	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AE

Deuteranopia (green-blind)

#003BA8

Tritanopia (blue-blind)

#004F68

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312aaa;
/* rgb */ color: rgb(49, 42, 170);
/* oklch */ color: oklch(39.2% 0.194 275.1);

Tailwind

colors: {
  custom: {
    50: '#7c66c5',
    500: '#312aaa',
    950: '#000000',
  },
}

SCSS

$custom: #312aaa;
$custom-light: #7c66c5;
$custom-dark: #000000;

JSON

{
  "hex": "#312aaa",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 170
  },
  "hsl": {
    "h": 243.281,
    "s": 60.377,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39248,
    "c": 0.19384,
    "h": 275.1
  },
  "luminance": 0.05211
}

Semantic roles & 50–950 ramp

primary

#312AAA

secondary

#BFC36C

accent

#E444DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312AAA

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

Preview Lab → · Contrast checker → · Palette generator →