#A23730#A23730

#A23730 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.143 H 27.4°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX#A23730
RGBrgb(162, 55, 48)
HSLhsl(4, 54%, 41%)
HSVhsv(4, 70%, 64%)
CMYKcmyk(0%, 66%, 70.4%, 36.5%)
CIE-LABlab(38.95, 43.76, 28.46)
CIE-LCHlch(38.95, 52.20, 33.04°)
OKLaboklab(49.05% 0.127 0.0657)
OKLCHoklch(49.05% 0.143 27.4)
XYZxyz(16.8017, 10.6295, 3.9627)
Luminance0.1063 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A23730 #309BA2
analogous
#A23062 #A23730 #A27030
triadic
#A23730 #30A237 #3730A2
tetradic
#A23730 #62A230 #309BA2 #7030A2
square
#A23730 #62A230 #309BA2 #7030A2
split-complementary
#A23730 #30A270 #3062A2
monochromatic
#441714 #732722 #A23730 #C84F47 #D67C76

Accessibility & contrast

On white

6.72
#A23730 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.13
#A23730 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A23730
6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A23730#FFFFFF#000000##FFFFFF
##A237301.006.723.136.72
#FFFFFF6.721.0021.001.00
#0000003.1321.001.0021.00
##FFFFFF6.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544D2E
Deuteranopia (green-blind)
#6F642D
Tritanopia (blue-blind)
#B21C36
Achromatopsia (no color)
#5C5C5C

Design tokens & code

CSS
--color: #a23730;
/* rgb */ color: rgb(162, 55, 48);
/* oklch */ color: oklch(49.0% 0.143 27.4);
Tailwind
colors: {
  custom: {
    50: '#c57468',
    500: '#a23730',
    950: '#000000',
  },
}
SCSS
$custom: #a23730;
$custom-light: #c57468;
$custom-dark: #000000;
JSON
{
  "hex": "#a23730",
  "rgb": {
    "r": 162,
    "g": 55,
    "b": 48
  },
  "hsl": {
    "h": 3.684,
    "s": 54.286,
    "l": 41.176
  },
  "oklch": {
    "l": 0.49048,
    "c": 0.14299,
    "h": 27.4
  },
  "luminance": 0.10627
}

Semantic roles & 50–950 ramp

primary
#A23730
secondary
#6FBABE
accent
#D5DE4A
background
#FDF7F6
surface
#FAEDEB
border
#D3C8C6
text
#140806
muted
#837B7A

Preview Lab

Preview with #A23730

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

Preview Lab → · Contrast checker → · Palette generator →

#A23730 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva