#312BC9#312BC9

#312BC9 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.7% C 0.230 H 272.6°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX#312BC9
RGBrgb(49, 43, 201)
HSLhsl(242, 65%, 48%)
HSVhsv(242, 79%, 79%)
CMYKcmyk(75.6%, 78.6%, 0%, 21.2%)
CIE-LABlab(30.87, 53.39, -79.29)
CIE-LCHlch(30.87, 95.59, 303.95°)
OKLaboklab(42.73% 0.0102 -0.2295)
OKLCHoklch(42.73% 0.23 272.6)
XYZxyz(12.6696, 6.5964, 55.8525)
Luminance0.0660 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#312BC9 #C3C92B
analogous
#2B74C9 #312BC9 #802BC9
triadic
#312BC9 #C9312B #2BC931
tetradic
#312BC9 #C92B74 #C3C92B #2BC980
square
#312BC9 #C92B74 #C3C92B #2BC980
split-complementary
#312BC9 #C9802B #74C92B
monochromatic
#181564 #252097 #312BC9 #5B56DB #8C89E6

Accessibility & contrast

On white

9.05
#312BC9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.32
#312BC9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BC9
9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##312BC9#FFFFFF#000000##FFFFFF
##312BC91.009.052.329.05
#FFFFFF9.051.0021.001.00
#0000002.3221.001.0021.00
##FFFFFF9.051.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0050CD
Deuteranopia (green-blind)
#0041C6
Tritanopia (blue-blind)
#005C7A
Achromatopsia (no color)
#494949

Design tokens & code

CSS
--color: #312bc9;
/* rgb */ color: rgb(49, 43, 201);
/* oklch */ color: oklch(42.7% 0.230 272.6);
Tailwind
colors: {
  custom: {
    50: '#8368db',
    500: '#312bc9',
    950: '#000000',
  },
}
SCSS
$custom: #312bc9;
$custom-light: #8368db;
$custom-dark: #000000;
JSON
{
  "hex": "#312bc9",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 201
  },
  "hsl": {
    "h": 242.278,
    "s": 64.754,
    "l": 47.843
  },
  "oklch": {
    "l": 0.42728,
    "c": 0.22969,
    "h": 272.6
  },
  "luminance": 0.06598
}

Semantic roles & 50–950 ramp

primary
#312BC9
secondary
#CCCF80
accent
#E840E1
background
#F8F6FD
surface
#F0EBFB
border
#CBC6D4
text
#0D0615
muted
#7D7A83

Preview Lab

Preview with #312BC9

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

Preview Lab → · Contrast checker → · Palette generator →

#312BC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva