#312BAA#312BAA

#312BAA is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.4% C 0.193 H 275.0°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#312BAA
RGB	rgb(49, 43, 170)
HSL	hsl(243, 60%, 42%)
HSV	hsv(243, 75%, 67%)
CMYK	cmyk(71.2%, 74.7%, 0%, 33.3%)
CIE-LAB	lab(27.52, 43.49, -66.44)
CIE-LCH	lch(27.52, 79.41, 303.21°)
OKLab	oklab(39.39% 0.0168 -0.1921)
OKLCH	oklch(39.39% 0.193 275)
XYZ	xyz(9.3838, 5.2821, 38.5474)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BAA #A4AA2B

analogous

#2B64AA #312BAA #712BAA

triadic

#312BAA #AA312B #2BAA31

tetradic

#312BAA #AA2B64 #A4AA2B #2BAA71

square

#312BAA #AA2B64 #A4AA2B #2BAA71

split-complementary

#312BAA #AA712B #64AA2B

monochromatic

#151248 #231F79 #312BAA #4943CF #7974DC

Accessibility & contrast

On white

10.21

#312BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#312BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BAA

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BAA	#FFFFFF	#000000	##FFFFFF
##312BAA	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AE

Deuteranopia (green-blind)

#003BA8

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312baa;
/* rgb */ color: rgb(49, 43, 170);
/* oklch */ color: oklch(39.4% 0.193 275.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#312baa",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 170
  },
  "hsl": {
    "h": 242.835,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39388,
    "c": 0.19285,
    "h": 275
  },
  "luminance": 0.05283
}

Semantic roles & 50–950 ramp

primary

#312BAA

secondary

#BFC36E

accent

#E345DB

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312BAA

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

Preview Lab → · Contrast checker → · Palette generator →