#283550#283550

#283550 is a dark, muted blue. Relative luminance 0.036; OKLCH L 33.0% C 0.051 H 264.1°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#283550
RGB	rgb(40, 53, 80)
HSL	hsl(221, 33%, 24%)
HSV	hsv(221, 50%, 31%)
CMYK	cmyk(50%, 33.7%, 0%, 68.6%)
CIE-LAB	lab(22.22, 3.12, -18.18)
CIE-LCH	lch(22.22, 18.45, 279.72°)
OKLab	oklab(33.05% -0.0052 -0.0509)
OKLCH	oklch(33.05% 0.051 264.1)
XYZ	xyz(3.5957, 3.5763, 8.0887)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283550 #504328

analogous

#284950 #283550 #2F2850

triadic

#283550 #502835 #355028

tetradic

#283550 #502849 #504328 #28502F

square

#283550 #502849 #504328 #28502F

split-complementary

#283550 #502F28 #495028

monochromatic

#0A0E14 #141A27 #283550 #3C5079 #516BA2

Accessibility & contrast

On white

12.24

#283550 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#283550 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283550

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283550	#FFFFFF	#000000	##FFFFFF
##283550	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3751

Deuteranopia (green-blind)

#27334F

Tritanopia (blue-blind)

#193B3F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #283550;
/* rgb */ color: rgb(40, 53, 80);
/* oklch */ color: oklch(33.0% 0.051 264.1);

Tailwind

colors: {
  custom: {
    50: '#646c81',
    500: '#283550',
    950: '#000000',
  },
}

SCSS

$custom: #283550;
$custom-light: #646c81;
$custom-dark: #000000;

JSON

{
  "hex": "#283550",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 80
  },
  "hsl": {
    "h": 220.5,
    "s": 33.333,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33045,
    "c": 0.05122,
    "h": 264.1
  },
  "luminance": 0.03577
}

Semantic roles & 50–950 ramp

primary

#283550

secondary

#837351

accent

#A75EC9

background

#F6F6F7

surface

#EBEBEE

border

#C6C6C9

text

#05060A

muted

#7A7A7C

Preview Lab

Preview with #283550

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

Preview Lab → · Contrast checker → · Palette generator →