#312BC7#312BC7

#312BC7 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.5% C 0.227 H 272.7°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#312BC7
RGB	rgb(49, 43, 199)
HSL	hsl(242, 64%, 47%)
HSV	hsv(242, 78%, 78%)
CMYK	cmyk(75.4%, 78.4%, 0%, 22%)
CIE-LAB	lab(30.65, 52.77, -78.49)
CIE-LCH	lch(30.65, 94.58, 303.91°)
OKLab	oklab(42.51% 0.0107 -0.2271)
OKLCH	oklch(42.51% 0.227 272.7)
XYZ	xyz(12.4358, 6.5029, 54.6215)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BC7 #C1C72B

analogous

#2B73C7 #312BC7 #7F2BC7

triadic

#312BC7 #C7312B #2BC731

tetradic

#312BC7 #C72B73 #C1C72B #2BC77F

square

#312BC7 #C72B73 #C1C72B #2BC77F

split-complementary

#312BC7 #C77F2B #73C72B

monochromatic

#181562 #252095 #312BC7 #5A55DA #8B87E5

Accessibility & contrast

On white

9.13

#312BC7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#312BC7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BC7

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BC7	#FFFFFF	#000000	##FFFFFF
##312BC7	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FCB

Deuteranopia (green-blind)

#0040C4

Tritanopia (blue-blind)

#005B79

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #312bc7;
/* rgb */ color: rgb(49, 43, 199);
/* oklch */ color: oklch(42.5% 0.227 272.7);

Tailwind

colors: {
  custom: {
    50: '#8268d9',
    500: '#312bc7',
    950: '#000000',
  },
}

SCSS

$custom: #312bc7;
$custom-light: #8268d9;
$custom-dark: #000000;

JSON

{
  "hex": "#312bc7",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 199
  },
  "hsl": {
    "h": 242.308,
    "s": 64.463,
    "l": 47.451
  },
  "oklch": {
    "l": 0.42508,
    "c": 0.22738,
    "h": 272.7
  },
  "luminance": 0.06504
}

Semantic roles & 50–950 ramp

primary

#312BC7

secondary

#CCCF7F

accent

#E740E1

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0D0615

muted

#7D7A83

Preview Lab

Preview with #312BC7

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

Preview Lab → · Contrast checker → · Palette generator →