#312BB7#312BB7

#312BB7 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.8% C 0.209 H 273.9°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#312BB7
RGB	rgb(49, 43, 183)
HSL	hsl(243, 62%, 44%)
HSV	hsv(243, 77%, 72%)
CMYK	cmyk(73.2%, 76.5%, 0%, 28.2%)
CIE-LAB	lab(28.90, 47.71, -71.95)
CIE-LCH	lch(28.90, 86.33, 303.55°)
OKLab	oklab(40.77% 0.0141 -0.2081)
OKLCH	oklch(40.77% 0.209 273.9)
XYZ	xyz(10.6749, 5.7985, 45.3472)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BB7 #B1B72B

analogous

#2B6BB7 #312BB7 #772BB7

triadic

#312BB7 #B7312B #2BB731

tetradic

#312BB7 #B72B6B #B1B72B #2BB777

square

#312BB7 #B72B6B #B1B72B #2BB777

split-complementary

#312BB7 #B7772B #6BB72B

monochromatic

#161454 #241F85 #312BB7 #514BD5 #807CE0

Accessibility & contrast

On white

9.72

#312BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#312BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BB7

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BB7	#FFFFFF	#000000	##FFFFFF
##312BB7	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBB

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#005570

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312bb7;
/* rgb */ color: rgb(49, 43, 183);
/* oklch */ color: oklch(40.8% 0.209 273.9);

Tailwind

colors: {
  custom: {
    50: '#7f67ce',
    500: '#312bb7',
    950: '#000000',
  },
}

SCSS

$custom: #312bb7;
$custom-light: #7f67ce;
$custom-dark: #000000;

JSON

{
  "hex": "#312bb7",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 183
  },
  "hsl": {
    "h": 242.571,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.40767,
    "c": 0.20861,
    "h": 273.9
  },
  "luminance": 0.058
}

Semantic roles & 50–950 ramp

primary

#312BB7

secondary

#C5C975

accent

#E543DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312BB7

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

Preview Lab → · Contrast checker → · Palette generator →