#283F41#283F41

#283F41 is a dark, muted teal. Relative luminance 0.044; OKLCH L 35.0% C 0.029 H 202.8°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#283F41
RGB	rgb(40, 63, 65)
HSL	hsl(185, 24%, 21%)
HSV	hsv(185, 38%, 25%)
CMYK	cmyk(38.5%, 3.1%, 0%, 74.5%)
CIE-LAB	lab(24.91, -8.34, -4.09)
CIE-LCH	lch(24.91, 9.28, 206.12°)
OKLab	oklab(34.95% -0.0266 -0.0112)
OKLCH	oklch(34.95% 0.029 202.8)
XYZ	xyz(3.6064, 4.3876, 5.6569)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F41 #412A28

analogous

#284136 #283F41 #283241

triadic

#283F41 #41283F #3F4128

tetradic

#283F41 #362841 #412A28 #324128

square

#283F41 #362841 #412A28 #324128

split-complementary

#283F41 #412832 #413628

monochromatic

#0C1213 #111A1B #283F41 #3F6467 #57888D

Accessibility & contrast

On white

11.18

#283F41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#283F41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F41

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F41	#FFFFFF	#000000	##FFFFFF
##283F41	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3D41

Deuteranopia (green-blind)

#373A41

Tritanopia (blue-blind)

#1F4140

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283f41;
/* rgb */ color: rgb(40, 63, 65);
/* oklch */ color: oklch(35.0% 0.029 202.8);

Tailwind

colors: {
  custom: {
    50: '#637475',
    500: '#283f41',
    950: '#000000',
  },
}

SCSS

$custom: #283f41;
$custom-light: #637475;
$custom-dark: #000000;

JSON

{
  "hex": "#283f41",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 65
  },
  "hsl": {
    "h": 184.8,
    "s": 23.81,
    "l": 20.588
  },
  "oklch": {
    "l": 0.34953,
    "c": 0.02888,
    "h": 202.8
  },
  "luminance": 0.04388
}

Semantic roles & 50–950 ramp

primary

#283F41

secondary

#735552

accent

#6F68C0

background

#F5F7F7

surface

#EAEDED

border

#C6C8C8

text

#050808

muted

#797B7B

Preview Lab

Preview with #283F41

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

Preview Lab → · Contrast checker → · Palette generator →