#1C280A#1C280A

#1C280A is a dark, muted yellow-green. Relative luminance 0.018; OKLCH L 25.8% C 0.052 H 128.0°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX#1C280A
RGBrgb(28, 40, 10)
HSLhsl(84, 60%, 10%)
HSVhsv(84, 75%, 16%)
CMYKcmyk(30%, 0%, 75%, 84.3%)
CIE-LABlab(14.32, -11.36, 16.63)
CIE-LCHlch(14.32, 20.14, 124.34°)
OKLaboklab(25.75% -0.0321 0.0411)
OKLCHoklch(25.75% 0.052 128)
XYZxyz(1.2925, 1.7864, 0.5638)
Luminance0.0179 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C280A #160A28
analogous
#28250A #1C280A #0D280A
triadic
#1C280A #0A1C28 #280A1C
tetradic
#1C280A #0A2825 #160A28 #280A0D
square
#1C280A #0A2825 #160A28 #280A0D
split-complementary
#1C280A #0A0D28 #250A28
monochromatic
#111806 #111806 #1C280A #3E5916 #618A22

Accessibility & contrast

On white

15.47
#1C280A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.36
#1C280A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C280A
15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C280A#FFFFFF#000000##FFFFFF
##1C280A1.0015.471.3615.47
#FFFFFF15.471.0021.001.00
#0000001.3621.001.0021.00
##FFFFFF15.471.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A2507
Deuteranopia (green-blind)
#29240C
Tritanopia (blue-blind)
#1D2622
Achromatopsia (no color)
#242424

Design tokens & code

CSS
--color: #1c280a;
/* rgb */ color: rgb(28, 40, 10);
/* oklch */ color: oklch(25.8% 0.052 128.0);
Tailwind
colors: {
  custom: {
    50: '#59624b',
    500: '#1c280a',
    950: '#000000',
  },
}
SCSS
$custom: #1c280a;
$custom-light: #59624b;
$custom-dark: #000000;
JSON
{
  "hex": "#1c280a",
  "rgb": {
    "r": 28,
    "g": 40,
    "b": 10
  },
  "hsl": {
    "h": 84,
    "s": 60,
    "l": 9.804
  },
  "oklch": {
    "l": 0.25752,
    "c": 0.05211,
    "h": 128
  },
  "luminance": 0.01786
}

Semantic roles & 50–950 ramp

primary
#1C280A
secondary
#412965
accent
#45E384
background
#F5F5F4
surface
#E9EAE7
border
#C5C6C3
text
#030501
muted
#787977

Preview Lab

Preview with #1C280A

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

Preview Lab → · Contrast checker → · Palette generator →

#1C280A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva