#283F10#283F10

#283F10 is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.7% C 0.077 H 131.7°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#283F10
RGB	rgb(40, 63, 16)
HSL	hsl(89, 59%, 15%)
HSV	hsv(89, 75%, 25%)
CMYK	cmyk(36.5%, 0%, 74.6%, 75.3%)
CIE-LAB	lab(23.81, -18.19, 25.07)
CIE-LCH	lch(23.81, 30.98, 125.96°)
OKLab	oklab(33.71% -0.0511 0.0574)
OKLCH	oklch(33.71% 0.077 131.7)
XYZ	xyz(2.7461, 4.0434, 1.1259)
Luminance	0.0404 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 4.88

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F10 #27103F

analogous

#3F3E10 #283F10 #103F10

triadic

#283F10 #10283F #3F1028

tetradic

#283F10 #103F3E #27103F #3F1010

square

#283F10 #103F3E #27103F #3F1010

split-complementary

#283F10 #10103F #3E103F

monochromatic

#0F1806 #0F1806 #283F10 #47701C #66A129

Accessibility & contrast

On white

11.61

#283F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#283F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F10

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F10	#FFFFFF	#000000	##FFFFFF
##283F10	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)

#423A0A

Deuteranopia (green-blind)

#3F3814

Tritanopia (blue-blind)

#293C35

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283f10;
/* rgb */ color: rgb(40, 63, 16);
/* oklch */ color: oklch(33.7% 0.077 131.7);

Tailwind

colors: {
  custom: {
    50: '#647451',
    500: '#283f10',
    950: '#000000',
  },
}

SCSS

$custom: #283f10;
$custom-light: #647451;
$custom-dark: #000000;

JSON

{
  "hex": "#283f10",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 16
  },
  "hsl": {
    "h": 89.362,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.33706,
    "c": 0.07688,
    "h": 131.7
  },
  "luminance": 0.04044
}

Semantic roles & 50–950 ramp

primary

#283F10

secondary

#553279

accent

#45E392

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#050802

muted

#7A7B78

Preview Lab

Preview with #283F10

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

Preview Lab → · Contrast checker → · Palette generator →