#284E73#284E73

#284E73 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.4% C 0.076 H 249.6°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#284E73
RGB	rgb(40, 78, 115)
HSL	hsl(210, 48%, 30%)
HSV	hsv(210, 65%, 45%)
CMYK	cmyk(65.2%, 32.2%, 0%, 54.9%)
CIE-LAB	lab(32.12, -0.93, -25.24)
CIE-LCH	lch(32.12, 25.26, 267.89°)
OKLab	oklab(41.39% -0.0265 -0.0712)
OKLCH	oklch(41.39% 0.076 249.6)
XYZ	xyz(6.6928, 7.1371, 17.2412)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E73 #734D28

analogous

#287372 #284E73 #282873

triadic

#284E73 #73284E #4E7328

tetradic

#284E73 #722873 #734D28 #287328

square

#284E73 #722873 #734D28 #287328

split-complementary

#284E73 #732828 #737228

monochromatic

#081018 #182F46 #284E73 #386DA0 #528BC3

Accessibility & contrast

On white

8.65

#284E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#284E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E73

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E73	#FFFFFF	#000000	##FFFFFF
##284E73	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5075

Deuteranopia (green-blind)

#344872

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284e73;
/* rgb */ color: rgb(40, 78, 115);
/* oklch */ color: oklch(41.4% 0.076 249.6);

Tailwind

colors: {
  custom: {
    50: '#6a7f9b',
    500: '#284e73',
    950: '#000000',
  },
}

SCSS

$custom: #284e73;
$custom-light: #6a7f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#284e73",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 115
  },
  "hsl": {
    "h": 209.6,
    "s": 48.387,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41393,
    "c": 0.07602,
    "h": 249.6
  },
  "luminance": 0.07138
}

Semantic roles & 50–950 ramp

primary

#284E73

secondary

#A57B52

accent

#9350D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #284E73

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

Preview Lab → · Contrast checker → · Palette generator →