#284151#284151

#284151 is a dark, muted cyan. Relative luminance 0.048; OKLCH L 36.2% C 0.042 H 237.6°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#284151
RGB	rgb(40, 65, 81)
HSL	hsl(203, 34%, 24%)
HSV	hsv(203, 51%, 32%)
CMYK	cmyk(50.6%, 19.8%, 0%, 68.2%)
CIE-LAB	lab(26.23, -4.56, -12.63)
CIE-LCH	lch(26.23, 13.43, 250.14°)
OKLab	oklab(36.21% -0.0222 -0.035)
OKLCH	oklch(36.21% 0.042 237.6)
XYZ	xyz(4.2501, 4.8255, 8.4904)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284151 #513828

analogous

#28514C #284151 #282C51

triadic

#284151 #512841 #415128

tetradic

#284151 #4C2851 #513828 #2C5128

square

#284151 #4C2851 #513828 #2C5128

split-complementary

#284151 #51282C #514C28

monochromatic

#0A1014 #142028 #284151 #3C627A #5083A3

Accessibility & contrast

On white

10.69

#284151 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#284151 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284151

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284151	#FFFFFF	#000000	##FFFFFF
##284151	1.00	10.69	1.97	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4152

Deuteranopia (green-blind)

#343C51

Tritanopia (blue-blind)

#164546

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #284151;
/* rgb */ color: rgb(40, 65, 81);
/* oklch */ color: oklch(36.2% 0.042 237.6);

Tailwind

colors: {
  custom: {
    50: '#657581',
    500: '#284151',
    950: '#000000',
  },
}

SCSS

$custom: #284151;
$custom-light: #657581;
$custom-dark: #000000;

JSON

{
  "hex": "#284151",
  "rgb": {
    "r": 40,
    "g": 65,
    "b": 81
  },
  "hsl": {
    "h": 203.415,
    "s": 33.884,
    "l": 23.725
  },
  "oklch": {
    "l": 0.36213,
    "c": 0.0415,
    "h": 237.6
  },
  "luminance": 0.04826
}

Semantic roles & 50–950 ramp

primary

#284151

secondary

#846551

accent

#885ECA

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#06080A

muted

#7A7B7C

Preview Lab

Preview with #284151

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

Preview Lab → · Contrast checker → · Palette generator →