#283A3C#283A3C

#283A3C is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.4% C 0.023 H 204.7°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#283A3C
RGB	rgb(40, 58, 60)
HSL	hsl(186, 20%, 20%)
HSV	hsv(186, 33%, 24%)
CMYK	cmyk(33.3%, 3.3%, 0%, 76.5%)
CIE-LAB	lab(23.01, -6.64, -3.59)
CIE-LCH	lch(23.01, 7.54, 208.38°)
OKLab	oklab(33.38% -0.0213 -0.0098)
OKLCH	oklch(33.38% 0.023 204.7)
XYZ	xyz(3.2035, 3.8033, 4.8394)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283A3C #3C2A28

analogous

#283C34 #283A3C #28303C

triadic

#283A3C #3C283A #3A3C28

tetradic

#283A3C #34283C #3C2A28 #303C28

square

#283A3C #34283C #3C2A28 #303C28

split-complementary

#283A3C #3C2830 #3C3428

monochromatic

#0C1212 #101717 #283A3C #405D61 #598185

Accessibility & contrast

On white

11.93

#283A3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#283A3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283A3C

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283A3C	#FFFFFF	#000000	##FFFFFF
##283A3C	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37383C

Deuteranopia (green-blind)

#34363C

Tritanopia (blue-blind)

#213B3B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #283a3c;
/* rgb */ color: rgb(40, 58, 60);
/* oklch */ color: oklch(33.4% 0.023 204.7);

Tailwind

colors: {
  custom: {
    50: '#627071',
    500: '#283a3c',
    950: '#000000',
  },
}

SCSS

$custom: #283a3c;
$custom-light: #627071;
$custom-dark: #000000;

JSON

{
  "hex": "#283a3c",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 60
  },
  "hsl": {
    "h": 186,
    "s": 20,
    "l": 19.608
  },
  "oklch": {
    "l": 0.33377,
    "c": 0.02344,
    "h": 204.7
  },
  "luminance": 0.03803
}

Semantic roles & 50–950 ramp

primary

#283A3C

secondary

#6D5552

accent

#736BBD

background

#F5F6F6

surface

#EAECEC

border

#C6C7C7

text

#050707

muted

#797A7A

Preview Lab

Preview with #283A3C

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

Preview Lab → · Contrast checker → · Palette generator →