#283147#283147

#283147 is a dark, muted blue. Relative luminance 0.031; OKLCH L 31.5% C 0.042 H 266.9°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#283147
RGB	rgb(40, 49, 71)
HSL	hsl(223, 28%, 22%)
HSV	hsv(223, 44%, 28%)
CMYK	cmyk(43.7%, 31%, 0%, 72.2%)
CIE-LAB	lab(20.45, 2.82, -14.90)
CIE-LCH	lch(20.45, 15.16, 280.71°)
OKLab	oklab(31.52% -0.0022 -0.0415)
OKLCH	oklch(31.52% 0.042 266.9)
XYZ	xyz(3.1104, 3.1025, 6.3950)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283147 #473E28

analogous

#284147 #283147 #2F2847

triadic

#283147 #472831 #314728

tetradic

#283147 #472841 #473E28 #28472F

square

#283147 #472841 #473E28 #28472F

split-complementary

#283147 #472F28 #414728

monochromatic

#0B0E14 #121620 #283147 #3E4C6E #546795

Accessibility & contrast

On white

12.96

#283147 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#283147 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283147

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283147	#FFFFFF	#000000	##FFFFFF
##283147	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293348

Deuteranopia (green-blind)

#273046

Tritanopia (blue-blind)

#1E3539

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #283147;
/* rgb */ color: rgb(40, 49, 71);
/* oklch */ color: oklch(31.5% 0.042 266.9);

Tailwind

colors: {
  custom: {
    50: '#63687a',
    500: '#283147',
    950: '#000000',
  },
}

SCSS

$custom: #283147;
$custom-light: #63687a;
$custom-dark: #000000;

JSON

{
  "hex": "#283147",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 71
  },
  "hsl": {
    "h": 222.581,
    "s": 27.928,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31516,
    "c": 0.04155,
    "h": 266.9
  },
  "luminance": 0.03103
}

Semantic roles & 50–950 ramp

primary

#283147

secondary

#796E52

accent

#A864C4

background

#F5F6F7

surface

#EAEBED

border

#C6C6C8

text

#050609

muted

#797A7B

Preview Lab

Preview with #283147

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

Preview Lab → · Contrast checker → · Palette generator →