#283F3D#283F3D

#283F3D is a dark, muted teal. Relative luminance 0.043; OKLCH L 34.8% C 0.029 H 189.1°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#283F3D
RGB	rgb(40, 63, 61)
HSL	hsl(175, 22%, 20%)
HSV	hsv(175, 37%, 25%)
CMYK	cmyk(36.5%, 0%, 3.2%, 75.3%)
CIE-LAB	lab(24.77, -9.49, -1.64)
CIE-LCH	lch(24.77, 9.63, 189.82°)
OKLab	oklab(34.8% -0.0286 -0.0046)
OKLCH	oklch(34.8% 0.029 189.1)
XYZ	xyz(3.4946, 4.3429, 5.0681)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F3D #3F282A

analogous

#283F31 #283F3D #28353F

triadic

#283F3D #3D283F #3F3D28

tetradic

#283F3D #31283F #3F282A #353F28

square

#283F3D #31283F #3F282A #353F28

split-complementary

#283F3D #3F2835 #3F3128

monochromatic

#0C1312 #101A19 #283F3D #406461 #588A85

Accessibility & contrast

On white

11.24

#283F3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#283F3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F3D

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F3D	#FFFFFF	#000000	##FFFFFF
##283F3D	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3D3D

Deuteranopia (green-blind)

#38393D

Tritanopia (blue-blind)

#20403E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283f3d;
/* rgb */ color: rgb(40, 63, 61);
/* oklch */ color: oklch(34.8% 0.029 189.1);

Tailwind

colors: {
  custom: {
    50: '#637472',
    500: '#283f3d',
    950: '#000000',
  },
}

SCSS

$custom: #283f3d;
$custom-light: #637472;
$custom-dark: #000000;

JSON

{
  "hex": "#283f3d",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 174.783,
    "s": 22.33,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34796,
    "c": 0.02898,
    "h": 189.1
  },
  "luminance": 0.04343
}

Semantic roles & 50–950 ramp

primary

#283F3D

secondary

#715255

accent

#6970BF

background

#F5F7F6

surface

#EAEDEC

border

#C6C8C7

text

#050808

muted

#797B7B

Preview Lab

Preview with #283F3D

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

Preview Lab → · Contrast checker → · Palette generator →