#283D48#283D48

#283D48 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.033 H 231.8°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#283D48
RGB	rgb(40, 61, 72)
HSL	hsl(201, 29%, 22%)
HSV	hsv(201, 44%, 28%)
CMYK	cmyk(44.4%, 15.3%, 0%, 71.8%)
CIE-LAB	lab(24.50, -4.92, -9.35)
CIE-LCH	lch(24.50, 10.56, 242.25°)
OKLab	oklab(34.72% -0.0203 -0.0258)
OKLCH	oklch(34.72% 0.033 231.8)
XYZ	xyz(3.7131, 4.2563, 6.7555)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D48 #483328

analogous

#284843 #283D48 #282D48

triadic

#283D48 #48283D #3D4828

tetradic

#283D48 #432848 #483328 #2D4828

square

#283D48 #432848 #483328 #2D4828

split-complementary

#283D48 #48282D #484328

monochromatic

#0B1114 #121C21 #283D48 #3E5E6F #548097

Accessibility & contrast

On white

11.34

#283D48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#283D48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D48

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D48	#FFFFFF	#000000	##FFFFFF
##283D48	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383C49

Deuteranopia (green-blind)

#333948

Tritanopia (blue-blind)

#1C4040

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283d48;
/* rgb */ color: rgb(40, 61, 72);
/* oklch */ color: oklch(34.7% 0.033 231.8);

Tailwind

colors: {
  custom: {
    50: '#63727b',
    500: '#283d48',
    950: '#000000',
  },
}

SCSS

$custom: #283d48;
$custom-light: #63727b;
$custom-dark: #000000;

JSON

{
  "hex": "#283d48",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 72
  },
  "hsl": {
    "h": 200.625,
    "s": 28.571,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34715,
    "c": 0.0328,
    "h": 231.8
  },
  "luminance": 0.04256
}

Semantic roles & 50–950 ramp

primary

#283D48

secondary

#7A6052

accent

#8563C5

background

#F6F6F7

surface

#EBECED

border

#C6C7C8

text

#050809

muted

#7A7B7B

Preview Lab

Preview with #283D48

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

Preview Lab → · Contrast checker → · Palette generator →