#283F1A#283F1A

#283F1A is a dark, moderate yellow-green. Relative luminance 0.041; OKLCH L 33.8% C 0.067 H 134.9°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#283F1A
RGB	rgb(40, 63, 26)
HSL	hsl(97, 42%, 17%)
HSV	hsv(97, 59%, 25%)
CMYK	cmyk(36.5%, 0%, 58.7%, 75.3%)
CIE-LAB	lab(23.94, -17.00, 19.71)
CIE-LCH	lch(23.94, 26.03, 130.78°)
OKLab	oklab(33.85% -0.0469 0.0471)
OKLCH	oklch(33.85% 0.067 134.9)
XYZ	xyz(2.8390, 4.0806, 1.6151)
Luminance	0.0408 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 7.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F1A #311A3F

analogous

#3B3F1A #283F1A #1A3F1E

triadic

#283F1A #1A283F #3F1A28

tetradic

#283F1A #1A3B3F #311A3F #3F1E1A

square

#283F1A #1A3B3F #311A3F #3F1E1A

split-complementary

#283F1A #1E1A3F #3F1A3B

monochromatic

#0E1609 #0E1609 #283F1A #446A2C #5F963E

Accessibility & contrast

On white

11.56

#283F1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#283F1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F1A

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F1A	#FFFFFF	#000000	##FFFFFF
##283F1A	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A17

Deuteranopia (green-blind)

#3E381C

Tritanopia (blue-blind)

#283D37

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f1a;
/* rgb */ color: rgb(40, 63, 26);
/* oklch */ color: oklch(33.8% 0.067 134.9);

Tailwind

colors: {
  custom: {
    50: '#637457',
    500: '#283f1a',
    950: '#000000',
  },
}

SCSS

$custom: #283f1a;
$custom-light: #637457;
$custom-dark: #000000;

JSON

{
  "hex": "#283f1a",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 26
  },
  "hsl": {
    "h": 97.297,
    "s": 41.573,
    "l": 17.451
  },
  "oklch": {
    "l": 0.33845,
    "c": 0.0665,
    "h": 134.9
  },
  "luminance": 0.04081
}

Semantic roles & 50–950 ramp

primary

#283F1A

secondary

#614075

accent

#56D1A3

background

#F6F7F5

surface

#EBEDE9

border

#C6C8C5

text

#050803

muted

#7A7B78

Preview Lab

Preview with #283F1A

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

Preview Lab → · Contrast checker → · Palette generator →