#303663#303663

#303663 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.078 H 275.9°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX#303663
RGBrgb(48, 54, 99)
HSLhsl(233, 35%, 29%)
HSVhsv(233, 52%, 39%)
CMYKcmyk(51.5%, 45.5%, 0%, 61.2%)
CIE-LABlab(24.22, 11.33, -27.48)
CIE-LCHlch(24.22, 29.73, 292.41°)
OKLaboklab(35.1% 0.008 -0.0778)
OKLCHoklch(35.1% 0.078 275.9)
XYZxyz(4.7895, 4.1673, 12.3540)
Luminance0.0417 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#303663 #635D30
analogous
#305063 #303663 #443063
triadic
#303663 #633036 #366330
tetradic
#303663 #633050 #635D30 #306344
square
#303663 #633050 #635D30 #306344
split-complementary
#303663 #634430 #506330
monochromatic
#0A0B15 #1C203A #303663 #444C8C #5D67B0

Accessibility & contrast

On white

11.45
#303663 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.83
#303663 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303663
11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##303663#FFFFFF#000000##FFFFFF
##3036631.0011.451.8311.45
#FFFFFF11.451.0021.001.00
#0000001.8321.001.0021.00
##FFFFFF11.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#243C65
Deuteranopia (green-blind)
#203862
Tritanopia (blue-blind)
#1D3F47
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #303663;
/* rgb */ color: rgb(48, 54, 99);
/* oklch */ color: oklch(35.1% 0.078 275.9);
Tailwind
colors: {
  custom: {
    50: '#6c6c90',
    500: '#303663',
    950: '#000000',
  },
}
SCSS
$custom: #303663;
$custom-light: #6c6c90;
$custom-dark: #000000;
JSON
{
  "hex": "#303663",
  "rgb": {
    "r": 48,
    "g": 54,
    "b": 99
  },
  "hsl": {
    "h": 232.941,
    "s": 34.694,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35097,
    "c": 0.07826,
    "h": 275.9
  },
  "luminance": 0.04168
}

Semantic roles & 50–950 ramp

primary
#303663
secondary
#948E5A
accent
#BE5DCB
background
#F6F6F8
surface
#EBEBF0
border
#C6C6CB
text
#07070C
muted
#7A7A7D

Preview Lab

Preview with #303663

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

Preview Lab → · Contrast checker → · Palette generator →

#303663 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva