#283F1C#283F1C

#283F1C is a dark, moderate yellow-green. Relative luminance 0.041; OKLCH L 33.9% C 0.064 H 135.8°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#283F1C
RGB	rgb(40, 63, 28)
HSL	hsl(99, 38%, 18%)
HSV	hsv(99, 56%, 25%)
CMYK	cmyk(36.5%, 0%, 55.6%, 75.3%)
CIE-LAB	lab(23.97, -16.71, 18.56)
CIE-LCH	lch(23.97, 24.98, 132.00°)
OKLab	oklab(33.88% -0.046 0.0447)
OKLCH	oklch(33.88% 0.064 135.8)
XYZ	xyz(2.8621, 4.0899, 1.7370)
Luminance	0.0409 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 7.59

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F1C #331C3F

analogous

#393F1C #283F1C #1C3F21

triadic

#283F1C #1C283F #3F1C28

tetradic

#283F1C #1C393F #331C3F #3F211C

square

#283F1C #1C393F #331C3F #3F211C

split-complementary

#283F1C #211C3F #3F1C39

monochromatic

#0D1509 #0D1509 #283F1C #43692F #5E9442

Accessibility & contrast

On white

11.55

#283F1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#283F1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F1C

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F1C	#FFFFFF	#000000	##FFFFFF
##283F1C	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A19

Deuteranopia (green-blind)

#3E381E

Tritanopia (blue-blind)

#273D37

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f1c;
/* rgb */ color: rgb(40, 63, 28);
/* oklch */ color: oklch(33.9% 0.064 135.8);

Tailwind

colors: {
  custom: {
    50: '#637459',
    500: '#283f1c',
    950: '#000000',
  },
}

SCSS

$custom: #283f1c;
$custom-light: #637459;
$custom-dark: #000000;

JSON

{
  "hex": "#283f1c",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 28
  },
  "hsl": {
    "h": 99.429,
    "s": 38.462,
    "l": 17.843
  },
  "oklch": {
    "l": 0.33879,
    "c": 0.06414,
    "h": 135.8
  },
  "luminance": 0.0409
}

Semantic roles & 50–950 ramp

primary

#283F1C

secondary

#634374

accent

#59CEA6

background

#F6F7F5

surface

#EBEDE9

border

#C6C8C5

text

#050803

muted

#7A7B78

Preview Lab

Preview with #283F1C

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

Preview Lab → · Contrast checker → · Palette generator →