#283F39#283F39

#283F39 is a dark, muted teal. Relative luminance 0.043; OKLCH L 34.6% C 0.031 H 176.3°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#283F39
RGB	rgb(40, 63, 57)
HSL	hsl(164, 22%, 20%)
HSV	hsv(164, 37%, 25%)
CMYK	cmyk(36.5%, 0%, 9.5%, 75.3%)
CIE-LAB	lab(24.64, -10.59, 0.82)
CIE-LCH	lch(24.64, 10.62, 175.59°)
OKLab	oklab(34.65% -0.0307 0.002)
OKLCH	oklch(34.65% 0.031 176.3)
XYZ	xyz(3.3908, 4.3014, 4.5217)
Luminance	0.0430 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F39 #3F282E

analogous

#283F2D #283F39 #28393F

triadic

#283F39 #39283F #3F3928

tetradic

#283F39 #2D283F #3F282E #393F28

square

#283F39 #2D283F #3F282E #393F28

split-complementary

#283F39 #3F2839 #3F2D28

monochromatic

#0C1311 #101A17 #283F39 #40645B #588A7D

Accessibility & contrast

On white

11.29

#283F39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#283F39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F39

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F39	#FFFFFF	#000000	##FFFFFF
##283F39	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3C39

Deuteranopia (green-blind)

#393939

Tritanopia (blue-blind)

#21403D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283f39;
/* rgb */ color: rgb(40, 63, 57);
/* oklch */ color: oklch(34.6% 0.031 176.3);

Tailwind

colors: {
  custom: {
    50: '#63746f',
    500: '#283f39',
    950: '#000000',
  },
}

SCSS

$custom: #283f39;
$custom-light: #63746f;
$custom-dark: #000000;

JSON

{
  "hex": "#283f39",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 57
  },
  "hsl": {
    "h": 164.348,
    "s": 22.33,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34648,
    "c": 0.03076,
    "h": 176.3
  },
  "luminance": 0.04302
}

Semantic roles & 50–950 ramp

primary

#283F39

secondary

#71525A

accent

#697FBF

background

#F5F7F6

surface

#EAEDEC

border

#C6C8C7

text

#050807

muted

#797B7A

Preview Lab

Preview with #283F39

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

Preview Lab → · Contrast checker → · Palette generator →