#283F13#283F13

#283F13 is a dark, moderate yellow-green. Relative luminance 0.041; OKLCH L 33.7% C 0.074 H 132.5°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#283F13
RGB	rgb(40, 63, 19)
HSL	hsl(91, 54%, 16%)
HSV	hsv(91, 70%, 25%)
CMYK	cmyk(36.5%, 0%, 69.8%, 75.3%)
CIE-LAB	lab(23.85, -17.88, 23.55)
CIE-LCH	lch(23.85, 29.57, 127.20°)
OKLab	oklab(33.74% -0.05 0.0546)
OKLCH	oklch(33.74% 0.074 132.5)
XYZ	xyz(2.7701, 4.0530, 1.2523)
Luminance	0.0405 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 5.13

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F13 #2A133F

analogous

#3E3F13 #283F13 #133F14

triadic

#283F13 #13283F #3F1328

tetradic

#283F13 #133E3F #2A133F #3F1413

square

#283F13 #133E3F #2A133F #3F1413

split-complementary

#283F13 #14133F #3F133E

monochromatic

#0F1807 #0F1807 #283F13 #466E21 #649D2F

Accessibility & contrast

On white

11.60

#283F13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#283F13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F13

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F13	#FFFFFF	#000000	##FFFFFF
##283F13	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423A0E

Deuteranopia (green-blind)

#3F3816

Tritanopia (blue-blind)

#283C36

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f13;
/* rgb */ color: rgb(40, 63, 19);
/* oklch */ color: oklch(33.7% 0.074 132.5);

Tailwind

colors: {
  custom: {
    50: '#647453',
    500: '#283f13',
    950: '#000000',
  },
}

SCSS

$custom: #283f13;
$custom-light: #647453;
$custom-dark: #000000;

JSON

{
  "hex": "#283f13",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 19
  },
  "hsl": {
    "h": 91.364,
    "s": 53.659,
    "l": 16.078
  },
  "oklch": {
    "l": 0.33742,
    "c": 0.07404,
    "h": 132.5
  },
  "luminance": 0.04053
}

Semantic roles & 50–950 ramp

primary

#283F13

secondary

#583678

accent

#4BDD97

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#050802

muted

#7A7B78

Preview Lab

Preview with #283F13

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

Preview Lab → · Contrast checker → · Palette generator →