#283B33#283B33

#283B33 is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.3% C 0.028 H 166.7°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#283B33
RGB	rgb(40, 59, 51)
HSL	hsl(155, 19%, 19%)
HSV	hsv(155, 32%, 23%)
CMYK	cmyk(32.2%, 0%, 13.6%, 76.9%)
CIE-LAB	lab(23.06, -9.71, 2.52)
CIE-LCH	lch(23.06, 10.03, 165.47°)
OKLab	oklab(33.32% -0.0275 0.0065)
OKLCH	oklch(33.32% 0.028 166.7)
XYZ	xyz(3.0364, 3.8179, 3.7083)
Luminance	0.0382 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283B33 #3B2830

analogous

#283B2A #283B33 #283A3B

triadic

#283B33 #33283B #3B3328

tetradic

#283B33 #2A283B #3B2830 #3A3B28

square

#283B33 #2A283B #3B2830 #3A3B28

split-complementary

#283B33 #3B283A #3B2A28

monochromatic

#0C1210 #0F1713 #283B33 #415F53 #598472

Accessibility & contrast

On white

11.91

#283B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#283B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B33

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283B33	#FFFFFF	#000000	##FFFFFF
##283B33	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3833

Deuteranopia (green-blind)

#373633

Tritanopia (blue-blind)

#243B39

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #283b33;
/* rgb */ color: rgb(40, 59, 51);
/* oklch */ color: oklch(33.3% 0.028 166.7);

Tailwind

colors: {
  custom: {
    50: '#62716a',
    500: '#283b33',
    950: '#000000',
  },
}

SCSS

$custom: #283b33;
$custom-light: #62716a;
$custom-dark: #000000;

JSON

{
  "hex": "#283b33",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 51
  },
  "hsl": {
    "h": 154.737,
    "s": 19.192,
    "l": 19.412
  },
  "oklch": {
    "l": 0.33318,
    "c": 0.02829,
    "h": 166.7
  },
  "luminance": 0.03818
}

Semantic roles & 50–950 ramp

primary

#283B33

secondary

#6C535D

accent

#6C8EBC

background

#F5F6F6

surface

#EAECEB

border

#C6C7C6

text

#050706

muted

#797A7A

Preview Lab

Preview with #283B33

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

Preview Lab → · Contrast checker → · Palette generator →