#312AC8#312AC8

#312AC8 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.5% C 0.229 H 272.7°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#312AC8
RGB	rgb(49, 42, 200)
HSL	hsl(243, 65%, 47%)
HSV	hsv(243, 79%, 78%)
CMYK	cmyk(75.5%, 79%, 0%, 21.6%)
CIE-LAB	lab(30.59, 53.57, -79.17)
CIE-LCH	lch(30.59, 95.60, 304.08°)
OKLab	oklab(42.5% 0.0108 -0.2291)
OKLCH	oklch(42.5% 0.229 272.7)
XYZ	xyz(12.5164, 6.4777, 55.2231)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AC8 #C1C82A

analogous

#2A72C8 #312AC8 #802AC8

triadic

#312AC8 #C8312A #2AC831

tetradic

#312AC8 #C82A72 #C1C82A #2AC880

square

#312AC8 #C82A72 #C1C82A #2AC880

split-complementary

#312AC8 #C8802A #72C82A

monochromatic

#181563 #251F95 #312AC8 #5A54DB #8B87E6

Accessibility & contrast

On white

9.15

#312AC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#312AC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AC8

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AC8	#FFFFFF	#000000	##FFFFFF
##312AC8	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FCC

Deuteranopia (green-blind)

#0040C5

Tritanopia (blue-blind)

#005B79

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #312ac8;
/* rgb */ color: rgb(49, 42, 200);
/* oklch */ color: oklch(42.5% 0.229 272.7);

Tailwind

colors: {
  custom: {
    50: '#8367da',
    500: '#312ac8',
    950: '#000000',
  },
}

SCSS

$custom: #312ac8;
$custom-light: #8367da;
$custom-dark: #000000;

JSON

{
  "hex": "#312ac8",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 200
  },
  "hsl": {
    "h": 242.658,
    "s": 65.289,
    "l": 47.451
  },
  "oklch": {
    "l": 0.42498,
    "c": 0.22936,
    "h": 272.7
  },
  "luminance": 0.06479
}

Semantic roles & 50–950 ramp

primary

#312AC8

secondary

#CCCF7F

accent

#E840E1

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0D0615

muted

#7D7A83

Preview Lab

Preview with #312AC8

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

Preview Lab → · Contrast checker → · Palette generator →