#283F49#283F49

#283F49 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.034 H 227.1°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#283F49
RGB	rgb(40, 63, 73)
HSL	hsl(198, 29%, 22%)
HSV	hsv(198, 45%, 29%)
CMYK	cmyk(45.2%, 13.7%, 0%, 71.4%)
CIE-LAB	lab(25.22, -5.88, -8.92)
CIE-LCH	lch(25.22, 10.68, 236.58°)
OKLab	oklab(35.3% -0.0228 -0.0246)
OKLCH	oklch(35.3% 0.034 227.1)
XYZ	xyz(3.8548, 4.4869, 6.9650)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F49 #493228

analogous

#284943 #283F49 #282F49

triadic

#283F49 #49283F #3F4928

tetradic

#283F49 #432849 #493228 #2F4928

square

#283F49 #432849 #493228 #2F4928

split-complementary

#283F49 #49282F #494328

monochromatic

#0B1114 #121D21 #283F49 #3E6171 #538398

Accessibility & contrast

On white

11.07

#283F49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#283F49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F49

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F49	#FFFFFF	#000000	##FFFFFF
##283F49	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3E4A

Deuteranopia (green-blind)

#353A49

Tritanopia (blue-blind)

#1B4242

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283f49;
/* rgb */ color: rgb(40, 63, 73);
/* oklch */ color: oklch(35.3% 0.034 227.1);

Tailwind

colors: {
  custom: {
    50: '#64747b',
    500: '#283f49',
    950: '#000000',
  },
}

SCSS

$custom: #283f49;
$custom-light: #64747b;
$custom-dark: #000000;

JSON

{
  "hex": "#283f49",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 73
  },
  "hsl": {
    "h": 198.182,
    "s": 29.204,
    "l": 22.157
  },
  "oklch": {
    "l": 0.35299,
    "c": 0.03353,
    "h": 227.1
  },
  "luminance": 0.04487
}

Semantic roles & 50–950 ramp

primary

#283F49

secondary

#7B5E51

accent

#8062C5

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#050809

muted

#7A7B7B

Preview Lab

Preview with #283F49

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

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