#284D73#284D73

#284D73 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.077 H 250.8°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#284D73
RGB	rgb(40, 77, 115)
HSL	hsl(210, 48%, 30%)
HSV	hsv(210, 65%, 45%)
CMYK	cmyk(65.2%, 33%, 0%, 54.9%)
CIE-LAB	lab(31.80, -0.28, -25.74)
CIE-LCH	lch(31.80, 25.74, 269.37°)
OKLab	oklab(41.14% -0.0254 -0.0727)
OKLCH	oklch(41.14% 0.077 250.8)
XYZ	xyz(6.6223, 6.9960, 17.2177)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D73 #734E28

analogous

#287273 #284D73 #282873

triadic

#284D73 #73284D #4D7328

tetradic

#284D73 #732872 #734E28 #287328

square

#284D73 #732872 #734E28 #287328

split-complementary

#284D73 #732828 #727328

monochromatic

#081018 #182F46 #284D73 #386BA0 #528AC3

Accessibility & contrast

On white

8.75

#284D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#284D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D73

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D73	#FFFFFF	#000000	##FFFFFF
##284D73	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4F75

Deuteranopia (green-blind)

#334872

Tritanopia (blue-blind)

#00565B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284d73;
/* rgb */ color: rgb(40, 77, 115);
/* oklch */ color: oklch(41.1% 0.077 250.8);

Tailwind

colors: {
  custom: {
    50: '#6a7e9b',
    500: '#284d73',
    950: '#000000',
  },
}

SCSS

$custom: #284d73;
$custom-light: #6a7e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#284d73",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 115
  },
  "hsl": {
    "h": 210.4,
    "s": 48.387,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41142,
    "c": 0.07701,
    "h": 250.8
  },
  "luminance": 0.06997
}

Semantic roles & 50–950 ramp

primary

#284D73

secondary

#A57C52

accent

#9550D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284D73

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

Preview Lab → · Contrast checker → · Palette generator →