#312AAC#312AAC

#312AAC is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.5% C 0.196 H 274.9°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX#312AAC
RGBrgb(49, 42, 172)
HSLhsl(243, 61%, 42%)
HSVhsv(243, 76%, 67%)
CMYKcmyk(71.5%, 75.6%, 0%, 32.5%)
CIE-LABlab(27.54, 44.70, -67.63)
CIE-LCHlch(27.54, 81.06, 303.46°)
OKLaboklab(39.46% 0.0169 -0.1955)
OKLCHoklch(39.46% 0.196 274.9)
XYZxyz(9.5385, 5.2865, 39.5394)
Luminance0.0529 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#312AAC #A5AC2A
analogous
#2A64AC #312AAC #722AAC
triadic
#312AAC #AC312A #2AAC31
tetradic
#312AAC #AC2A64 #A5AC2A #2AAC72
square
#312AAC #AC2A64 #A5AC2A #2AAC72
split-complementary
#312AAC #AC722A #64AC2A
monochromatic
#15124A #231E7B #312AAC #4A42D1 #7973DD

Accessibility & contrast

On white

10.21
#312AAC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.06
#312AAC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AAC
10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##312AAC#FFFFFF#000000##FFFFFF
##312AAC1.0010.212.0610.21
#FFFFFF10.211.0021.001.00
#0000002.0621.001.0021.00
##FFFFFF10.211.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0047B0
Deuteranopia (green-blind)
#003BAA
Tritanopia (blue-blind)
#005069
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #312aac;
/* rgb */ color: rgb(49, 42, 172);
/* oklch */ color: oklch(39.5% 0.196 274.9);
Tailwind
colors: {
  custom: {
    50: '#7c66c6',
    500: '#312aac',
    950: '#000000',
  },
}
SCSS
$custom: #312aac;
$custom-light: #7c66c6;
$custom-dark: #000000;
JSON
{
  "hex": "#312aac",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 172
  },
  "hsl": {
    "h": 243.231,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39459,
    "c": 0.19628,
    "h": 274.9
  },
  "luminance": 0.05287
}

Semantic roles & 50–950 ramp

primary
#312AAC
secondary
#C0C46D
accent
#E444DB
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0613
muted
#7C7A82

Preview Lab

Preview with #312AAC

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

Preview Lab → · Contrast checker → · Palette generator →

#312AAC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva