#312CA9#312CA9

#312CA9 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.4% C 0.191 H 274.9°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#312CA9
RGB	rgb(49, 44, 169)
HSL	hsl(242, 59%, 42%)
HSV	hsv(242, 74%, 66%)
CMYK	cmyk(71%, 74%, 0%, 33.7%)
CIE-LAB	lab(27.62, 42.59, -65.68)
CIE-LCH	lch(27.62, 78.28, 302.96°)
OKLab	oklab(39.43% 0.0164 -0.1899)
OKLCH	oklch(39.43% 0.191 274.9)
XYZ	xyz(9.3264, 5.3180, 38.0634)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CA9 #A4A92C

analogous

#2C66A9 #312CA9 #702CA9

triadic

#312CA9 #A9312C #2CA931

tetradic

#312CA9 #A92C66 #A4A92C #2CA970

square

#312CA9 #A92C66 #A4A92C #2CA970

split-complementary

#312CA9 #A9702C #66A92C

monochromatic

#151348 #231F78 #312CA9 #4944CE #7974DB

Accessibility & contrast

On white

10.18

#312CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#312CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CA9

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CA9	#FFFFFF	#000000	##FFFFFF
##312CA9	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AD

Deuteranopia (green-blind)

#003BA7

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312ca9;
/* rgb */ color: rgb(49, 44, 169);
/* oklch */ color: oklch(39.4% 0.191 274.9);

Tailwind

colors: {
  custom: {
    50: '#7b67c4',
    500: '#312ca9',
    950: '#000000',
  },
}

SCSS

$custom: #312ca9;
$custom-light: #7b67c4;
$custom-dark: #000000;

JSON

{
  "hex": "#312ca9",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 169
  },
  "hsl": {
    "h": 242.4,
    "s": 58.685,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39427,
    "c": 0.19061,
    "h": 274.9
  },
  "luminance": 0.05319
}

Semantic roles & 50–950 ramp

primary

#312CA9

secondary

#BFC36E

accent

#E246DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312CA9

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

Preview Lab → · Contrast checker → · Palette generator →