#283F31#283F31

#283F31 is a dark, muted green. Relative luminance 0.042; OKLCH L 34.4% C 0.038 H 157.0°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#283F31
RGB	rgb(40, 63, 49)
HSL	hsl(143, 22%, 20%)
HSV	hsv(143, 37%, 25%)
CMYK	cmyk(36.5%, 0%, 22.2%, 75.3%)
CIE-LAB	lab(24.41, -12.62, 5.77)
CIE-LCH	lch(24.41, 13.87, 155.44°)
OKLab	oklab(34.38% -0.035 0.0148)
OKLCH	oklch(34.38% 0.038 157)
XYZ	xyz(3.2068, 4.2277, 3.5522)
Luminance	0.0423 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F31 #3F2836

analogous

#2A3F28 #283F31 #283F3C

triadic

#283F31 #31283F #3F3128

tetradic

#283F31 #282A3F #3F2836 #3F3C28

square

#283F31 #282A3F #3F2836 #3F3C28

split-complementary

#283F31 #3C283F #3F282A

monochromatic

#0C130F #101A14 #283F31 #40644E #588A6B

Accessibility & contrast

On white

11.38

#283F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#283F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F31

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F31	#FFFFFF	#000000	##FFFFFF
##283F31	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3C30

Deuteranopia (green-blind)

#3B3932

Tritanopia (blue-blind)

#243F3B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283f31;
/* rgb */ color: rgb(40, 63, 49);
/* oklch */ color: oklch(34.4% 0.038 157.0);

Tailwind

colors: {
  custom: {
    50: '#637469',
    500: '#283f31',
    950: '#000000',
  },
}

SCSS

$custom: #283f31;
$custom-light: #637469;
$custom-dark: #000000;

JSON

{
  "hex": "#283f31",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 143.478,
    "s": 22.33,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34384,
    "c": 0.03798,
    "h": 157
  },
  "luminance": 0.04228
}

Semantic roles & 50–950 ramp

primary

#283F31

secondary

#715265

accent

#699DBF

background

#F5F7F6

surface

#EAEDEB

border

#C6C8C6

text

#050806

muted

#797B7A

Preview Lab

Preview with #283F31

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

Preview Lab → · Contrast checker → · Palette generator →