#283F47#283F47

#283F47 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.2% C 0.032 H 221.8°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#283F47
RGB	rgb(40, 63, 71)
HSL	hsl(195, 28%, 22%)
HSV	hsv(195, 44%, 28%)
CMYK	cmyk(43.7%, 11.3%, 0%, 72.2%)
CIE-LAB	lab(25.14, -6.51, -7.72)
CIE-LCH	lch(25.14, 10.10, 229.83°)
OKLab	oklab(35.21% -0.0237 -0.0212)
OKLCH	oklch(35.21% 0.032 221.8)
XYZ	xyz(3.7895, 4.4608, 6.6214)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F47 #473028

analogous

#284740 #283F47 #283047

triadic

#283F47 #47283F #3F4728

tetradic

#283F47 #402847 #473028 #304728

square

#283F47 #402847 #473028 #304728

split-complementary

#283F47 #472830 #474028

monochromatic

#0B1114 #121C20 #283F47 #3E626E #548495

Accessibility & contrast

On white

11.10

#283F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#283F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F47

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F47	#FFFFFF	#000000	##FFFFFF
##283F47	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3E47

Deuteranopia (green-blind)

#353A47

Tritanopia (blue-blind)

#1C4241

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283f47;
/* rgb */ color: rgb(40, 63, 71);
/* oklch */ color: oklch(35.2% 0.032 221.8);

Tailwind

colors: {
  custom: {
    50: '#63747a',
    500: '#283f47',
    950: '#000000',
  },
}

SCSS

$custom: #283f47;
$custom-light: #63747a;
$custom-dark: #000000;

JSON

{
  "hex": "#283f47",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 71
  },
  "hsl": {
    "h": 195.484,
    "s": 27.928,
    "l": 21.765
  },
  "oklch": {
    "l": 0.35209,
    "c": 0.03184,
    "h": 221.8
  },
  "luminance": 0.04461
}

Semantic roles & 50–950 ramp

primary

#283F47

secondary

#795C52

accent

#7D64C4

background

#F6F7F7

surface

#EBEDED

border

#C6C8C8

text

#050809

muted

#7A7B7B

Preview Lab

Preview with #283F47

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

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