#312FAD#312FAD

#312FAD is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.3% C 0.193 H 274.2°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX#312FAD
RGBrgb(49, 47, 173)
HSLhsl(241, 57%, 43%)
HSVhsv(241, 73%, 68%)
CMYKcmyk(71.7%, 72.8%, 0%, 32.2%)
CIE-LABlab(28.65, 42.20, -66.39)
CIE-LCHlch(28.65, 78.67, 302.44°)
OKLaboklab(40.28% 0.0141 -0.192)
OKLCHoklch(40.28% 0.193 274.2)
XYZxyz(9.8235, 5.7022, 40.1100)
Luminance0.0570 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#312FAD #ABAD2F
analogous
#2F6CAD #312FAD #702FAD
triadic
#312FAD #AD312F #2FAD31
tetradic
#312FAD #AD2F6C #ABAD2F #2FAD70
square
#312FAD #AD2F6C #ABAD2F #2FAD70
split-complementary
#312FAD #AD702F #6CAD2F
monochromatic
#16154D #23227D #312FAD #4D4BCE #7D7BDB

Accessibility & contrast

On white

9.81
#312FAD on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.14
#312FAD on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312FAD
9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##312FAD#FFFFFF#000000##FFFFFF
##312FAD1.009.812.149.81
#FFFFFF9.811.0021.001.00
#0000002.1421.001.0021.00
##FFFFFF9.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0049B1
Deuteranopia (green-blind)
#003EAB
Tritanopia (blue-blind)
#00536B
Achromatopsia (no color)
#444444

Design tokens & code

CSS
--color: #312fad;
/* rgb */ color: rgb(49, 47, 173);
/* oklch */ color: oklch(40.3% 0.193 274.2);
Tailwind
colors: {
  custom: {
    50: '#7c69c7',
    500: '#312fad',
    950: '#000000',
  },
}
SCSS
$custom: #312fad;
$custom-light: #7c69c7;
$custom-dark: #000000;
JSON
{
  "hex": "#312fad",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 173
  },
  "hsl": {
    "h": 240.952,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4028,
    "c": 0.1925,
    "h": 274.2
  },
  "luminance": 0.05703
}

Semantic roles & 50–950 ramp

primary
#312FAD
secondary
#C2C474
accent
#E147DE
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0613
muted
#7C7A82

Preview Lab

Preview with #312FAD

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

Preview Lab → · Contrast checker → · Palette generator →

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