#283D3F#283D3F

#283D3F is a dark, muted teal. Relative luminance 0.041; OKLCH L 34.3% C 0.027 H 203.5°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#283D3F
RGB	rgb(40, 61, 63)
HSL	hsl(185, 22%, 20%)
HSV	hsv(185, 37%, 25%)
CMYK	cmyk(36.5%, 3.2%, 0%, 75.3%)
CIE-LAB	lab(24.15, -7.67, -3.89)
CIE-LCH	lch(24.15, 8.60, 206.90°)
OKLab	oklab(34.32% -0.0245 -0.0106)
OKLCH	oklch(34.32% 0.027 203.5)
XYZ	xyz(3.4407, 4.1473, 5.3209)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D3F #3F2A28

analogous

#283F35 #283D3F #28313F

triadic

#283D3F #3F283D #3D3F28

tetradic

#283D3F #35283F #3F2A28 #313F28

square

#283D3F #35283F #3F2A28 #313F28

split-complementary

#283D3F #3F2831 #3F3528

monochromatic

#0C1213 #10191A #283D3F #406164 #58858A

Accessibility & contrast

On white

11.48

#283D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#283D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D3F

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D3F	#FFFFFF	#000000	##FFFFFF
##283D3F	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3B3F

Deuteranopia (green-blind)

#36383F

Tritanopia (blue-blind)

#203F3E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283d3f;
/* rgb */ color: rgb(40, 61, 63);
/* oklch */ color: oklch(34.3% 0.027 203.5);

Tailwind

colors: {
  custom: {
    50: '#637274',
    500: '#283d3f',
    950: '#000000',
  },
}

SCSS

$custom: #283d3f;
$custom-light: #637274;
$custom-dark: #000000;

JSON

{
  "hex": "#283d3f",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 185.217,
    "s": 22.33,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34323,
    "c": 0.02674,
    "h": 203.5
  },
  "luminance": 0.04147
}

Semantic roles & 50–950 ramp

primary

#283D3F

secondary

#715552

accent

#7069BF

background

#F5F6F7

surface

#EAECED

border

#C6C7C8

text

#050808

muted

#797B7B

Preview Lab

Preview with #283D3F

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

Preview Lab → · Contrast checker → · Palette generator →