#283F0A#283F0A

#283F0A is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.6% C 0.082 H 130.5°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#283F0A
RGB	rgb(40, 63, 10)
HSL	hsl(86, 73%, 14%)
HSV	hsv(86, 84%, 25%)
CMYK	cmyk(36.5%, 0%, 84.1%, 75.3%)
CIE-LAB	lab(23.76, -18.70, 27.79)
CIE-LCH	lch(23.76, 33.49, 123.94°)
OKLab	oklab(33.65% -0.0531 0.0621)
OKLCH	oklch(33.65% 0.082 130.5)
XYZ	xyz(2.7073, 4.0280, 0.9219)
Luminance	0.0403 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 4.72

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 6.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F0A #210A3F

analogous

#3F3C0A #283F0A #0D3F0A

triadic

#283F0A #0A283F #3F0A28

tetradic

#283F0A #0A3F3C #210A3F #3F0A0D

square

#283F0A #0A3F3C #210A3F #3F0A0D

split-complementary

#283F0A #0A0D3F #3C0A3F

monochromatic

#111A04 #111A04 #283F0A #4A7412 #6BA91B

Accessibility & contrast

On white

11.63

#283F0A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#283F0A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F0A

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F0A	#FFFFFF	#000000	##FFFFFF
##283F0A	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423A02

Deuteranopia (green-blind)

#3F380F

Tritanopia (blue-blind)

#293C35

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f0a;
/* rgb */ color: rgb(40, 63, 10);
/* oklch */ color: oklch(33.6% 0.082 130.5);

Tailwind

colors: {
  custom: {
    50: '#64744d',
    500: '#283f0a',
    950: '#000000',
  },
}

SCSS

$custom: #283f0a;
$custom-light: #64744d;
$custom-dark: #000000;

JSON

{
  "hex": "#283f0a",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 10
  },
  "hsl": {
    "h": 86.038,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.33649,
    "c": 0.08169,
    "h": 130.5
  },
  "luminance": 0.04028
}

Semantic roles & 50–950 ramp

primary

#283F0A

secondary

#4D297C

accent

#38EF88

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#060801

muted

#7A7B77

Preview Lab

Preview with #283F0A

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

Preview Lab → · Contrast checker → · Palette generator →