#283447#283447

#283447 is a dark, muted blue. Relative luminance 0.034; OKLCH L 32.3% C 0.038 H 259.4°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#283447
RGB	rgb(40, 52, 71)
HSL	hsl(217, 28%, 22%)
HSV	hsv(217, 44%, 28%)
CMYK	cmyk(43.7%, 26.8%, 0%, 72.2%)
CIE-LAB	lab(21.44, 0.75, -13.37)
CIE-LCH	lch(21.44, 13.39, 273.20°)
OKLab	oklab(32.29% -0.0069 -0.0371)
OKLCH	oklch(32.29% 0.038 259.4)
XYZ	xyz(3.2400, 3.3619, 6.4382)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283447 #473B28

analogous

#284447 #283447 #2C2847

triadic

#283447 #472834 #344728

tetradic

#283447 #472844 #473B28 #28472C

square

#283447 #472844 #473B28 #28472C

split-complementary

#283447 #472C28 #444728

monochromatic

#0B0E14 #121720 #283447 #3E516E #546D95

Accessibility & contrast

On white

12.56

#283447 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#283447 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283447

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283447	#FFFFFF	#000000	##FFFFFF
##283447	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3548

Deuteranopia (green-blind)

#2A3247

Tritanopia (blue-blind)

#1E383A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #283447;
/* rgb */ color: rgb(40, 52, 71);
/* oklch */ color: oklch(32.3% 0.038 259.4);

Tailwind

colors: {
  custom: {
    50: '#636b7a',
    500: '#283447',
    950: '#000000',
  },
}

SCSS

$custom: #283447;
$custom-light: #636b7a;
$custom-dark: #000000;

JSON

{
  "hex": "#283447",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 71
  },
  "hsl": {
    "h": 216.774,
    "s": 27.928,
    "l": 21.765
  },
  "oklch": {
    "l": 0.32288,
    "c": 0.03776,
    "h": 259.4
  },
  "luminance": 0.03362
}

Semantic roles & 50–950 ramp

primary

#283447

secondary

#796A52

accent

#9F64C4

background

#F5F6F7

surface

#EAEBED

border

#C6C6C8

text

#050609

muted

#797A7B

Preview Lab

Preview with #283447

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

Preview Lab → · Contrast checker → · Palette generator →