#283F11#283F11

#283F11 is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.7% C 0.076 H 131.9°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#283F11
RGB	rgb(40, 63, 17)
HSL	hsl(90, 58%, 16%)
HSV	hsv(90, 73%, 25%)
CMYK	cmyk(36.5%, 0%, 73%, 75.3%)
CIE-LAB	lab(23.82, -18.09, 24.58)
CIE-LCH	lch(23.82, 30.52, 126.36°)
OKLab	oklab(33.72% -0.0508 0.0565)
OKLCH	oklch(33.72% 0.076 131.9)
XYZ	xyz(2.7537, 4.0465, 1.1662)
Luminance	0.0405 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 4.95

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F11 #28113F

analogous

#3F3F11 #283F11 #113F11

triadic

#283F11 #11283F #3F1128

tetradic

#283F11 #113F3F #28113F #3F1111

square

#283F11 #113F3F #28113F #3F1111

split-complementary

#283F11 #11113F #3F113F

monochromatic

#0F1807 #0F1807 #283F11 #476F1E #659F2B

Accessibility & contrast

On white

11.61

#283F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#283F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F11

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F11	#FFFFFF	#000000	##FFFFFF
##283F11	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423A0B

Deuteranopia (green-blind)

#3F3815

Tritanopia (blue-blind)

#293C35

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f11;
/* rgb */ color: rgb(40, 63, 17);
/* oklch */ color: oklch(33.7% 0.076 131.9);

Tailwind

colors: {
  custom: {
    50: '#647451',
    500: '#283f11',
    950: '#000000',
  },
}

SCSS

$custom: #283f11;
$custom-light: #647451;
$custom-dark: #000000;

JSON

{
  "hex": "#283f11",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 17
  },
  "hsl": {
    "h": 90,
    "s": 57.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.33718,
    "c": 0.07596,
    "h": 131.9
  },
  "luminance": 0.04047
}

Semantic roles & 50–950 ramp

primary

#283F11

secondary

#563378

accent

#47E194

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#050802

muted

#7A7B78

Preview Lab

Preview with #283F11

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

Preview Lab → · Contrast checker → · Palette generator →