#283F2D#283F2D

#283F2D is a dark, muted green. Relative luminance 0.042; OKLCH L 34.3% C 0.043 H 150.5°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#283F2D
RGB	rgb(40, 63, 45)
HSL	hsl(133, 22%, 20%)
HSV	hsv(133, 37%, 25%)
CMYK	cmyk(36.5%, 0%, 28.6%, 75.3%)
CIE-LAB	lab(24.31, -13.54, 8.25)
CIE-LCH	lch(24.31, 15.85, 148.66°)
OKLab	oklab(34.27% -0.0371 0.021)
OKLCH	oklch(34.27% 0.043 150.5)
XYZ	xyz(3.1261, 4.1954, 3.1272)
Luminance	0.0420 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F2D #3F283A

analogous

#2F3F28 #283F2D #283F38

triadic

#283F2D #2D283F #3F2D28

tetradic

#283F2D #282F3F #3F283A #3F3828

square

#283F2D #282F3F #3F283A #3F3828

split-complementary

#283F2D #38283F #3F282F

monochromatic

#0C130D #101A12 #283F2D #406448 #588A62

Accessibility & contrast

On white

11.42

#283F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#283F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F2D

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F2D	#FFFFFF	#000000	##FFFFFF
##283F2D	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3B2C

Deuteranopia (green-blind)

#3C392E

Tritanopia (blue-blind)

#253E3A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283f2d;
/* rgb */ color: rgb(40, 63, 45);
/* oklch */ color: oklch(34.3% 0.043 150.5);

Tailwind

colors: {
  custom: {
    50: '#637466',
    500: '#283f2d',
    950: '#000000',
  },
}

SCSS

$custom: #283f2d;
$custom-light: #637466;
$custom-dark: #000000;

JSON

{
  "hex": "#283f2d",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 133.043,
    "s": 22.33,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34267,
    "c": 0.04267,
    "h": 150.5
  },
  "luminance": 0.04196
}

Semantic roles & 50–950 ramp

primary

#283F2D

secondary

#71526A

accent

#69ACBF

background

#F5F7F6

surface

#EAEDEB

border

#C6C8C6

text

#050805

muted

#797B7A

Preview Lab

Preview with #283F2D

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

Preview Lab → · Contrast checker → · Palette generator →