#283A3E#283A3E

#283A3E is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.5% C 0.024 H 212.9°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#283A3E
RGB	rgb(40, 58, 62)
HSL	hsl(191, 22%, 20%)
HSV	hsv(191, 35%, 24%)
CMYK	cmyk(35.5%, 6.5%, 0%, 75.7%)
CIE-LAB	lab(23.08, -6.06, -4.82)
CIE-LCH	lch(23.08, 7.74, 218.50°)
OKLab	oklab(33.46% -0.0203 -0.0132)
OKLCH	oklch(33.46% 0.024 212.9)
XYZ	xyz(3.2573, 3.8249, 5.1231)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283A3E #3E2C28

analogous

#283E37 #283A3E #282F3E

triadic

#283A3E #3E283A #3A3E28

tetradic

#283A3E #37283E #3E2C28 #2F3E28

square

#283A3E #37283E #3E2C28 #2F3E28

split-complementary

#283A3E #3E282F #3E3728

monochromatic

#0C1113 #101719 #283A3E #405D63 #588088

Accessibility & contrast

On white

11.90

#283A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#283A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283A3E

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283A3E	#FFFFFF	#000000	##FFFFFF
##283A3E	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37393E

Deuteranopia (green-blind)

#33363E

Tritanopia (blue-blind)

#203C3B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #283a3e;
/* rgb */ color: rgb(40, 58, 62);
/* oklch */ color: oklch(33.5% 0.024 212.9);

Tailwind

colors: {
  custom: {
    50: '#637073',
    500: '#283a3e',
    950: '#000000',
  },
}

SCSS

$custom: #283a3e;
$custom-light: #637073;
$custom-dark: #000000;

JSON

{
  "hex": "#283a3e",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 62
  },
  "hsl": {
    "h": 190.909,
    "s": 21.569,
    "l": 20
  },
  "oklch": {
    "l": 0.3346,
    "c": 0.02421,
    "h": 212.9
  },
  "luminance": 0.03825
}

Semantic roles & 50–950 ramp

primary

#283A3E

secondary

#705852

accent

#796ABE

background

#F5F6F6

surface

#EAECEC

border

#C6C7C7

text

#050708

muted

#797A7B

Preview Lab

Preview with #283A3E

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

Preview Lab → · Contrast checker → · Palette generator →