#283C3C#283C3C

#283C3C is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.9% C 0.025 H 196.0°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#283C3C
RGB	rgb(40, 60, 60)
HSL	hsl(180, 20%, 20%)
HSV	hsv(180, 33%, 24%)
CMYK	cmyk(33.3%, 0%, 0%, 76.5%)
CIE-LAB	lab(23.70, -7.91, -2.56)
CIE-LCH	lch(23.70, 8.31, 197.96°)
OKLab	oklab(33.93% -0.0245 -0.007)
OKLCH	oklch(33.93% 0.025 196)
XYZ	xyz(3.3063, 4.0089, 4.8737)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C3C #3C2828

analogous

#283C32 #283C3C #28323C

triadic

#283C3C #3C283C #3C3C28

tetradic

#283C3C #32283C #3C2828 #323C28

square

#283C3C #32283C #3C2828 #323C28

split-complementary

#283C3C #3C2832 #3C3228

monochromatic

#0C1212 #101717 #283C3C #406161 #598585

Accessibility & contrast

On white

11.66

#283C3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#283C3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C3C

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C3C	#FFFFFF	#000000	##FFFFFF
##283C3C	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393A3C

Deuteranopia (green-blind)

#36373C

Tritanopia (blue-blind)

#213D3C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #283c3c;
/* rgb */ color: rgb(40, 60, 60);
/* oklch */ color: oklch(33.9% 0.025 196.0);

Tailwind

colors: {
  custom: {
    50: '#637171',
    500: '#283c3c',
    950: '#000000',
  },
}

SCSS

$custom: #283c3c;
$custom-light: #637171;
$custom-dark: #000000;

JSON

{
  "hex": "#283c3c",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 60
  },
  "hsl": {
    "h": 180,
    "s": 20,
    "l": 19.608
  },
  "oklch": {
    "l": 0.33927,
    "c": 0.02545,
    "h": 196
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#283C3C

secondary

#6D5252

accent

#6B6BBD

background

#F5F6F6

surface

#EAECEC

border

#C6C7C7

text

#050707

muted

#797A7A

Preview Lab

Preview with #283C3C

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

Preview Lab → · Contrast checker → · Palette generator →