#284F72#284F72

#284F72 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.6% C 0.074 H 247.6°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#284F72
RGB	rgb(40, 79, 114)
HSL	hsl(208, 48%, 30%)
HSV	hsv(208, 65%, 45%)
CMYK	cmyk(64.9%, 30.7%, 0%, 55.3%)
CIE-LAB	lab(32.39, -1.94, -24.19)
CIE-LCH	lch(32.39, 24.27, 265.42°)
OKLab	oklab(41.59% -0.028 -0.0682)
OKLCH	oklch(41.59% 0.074 247.6)
XYZ	xyz(6.7072, 7.2573, 16.9637)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F72 #724B28

analogous

#287270 #284F72 #282A72

triadic

#284F72 #72284F #4F7228

tetradic

#284F72 #702872 #724B28 #2A7228

square

#284F72 #702872 #724B28 #2A7228

split-complementary

#284F72 #72282A #727028

monochromatic

#081017 #183045 #284F72 #386E9F #528DC2

Accessibility & contrast

On white

8.57

#284F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#284F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F72

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F72	#FFFFFF	#000000	##FFFFFF
##284F72	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405074

Deuteranopia (green-blind)

#364971

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284f72;
/* rgb */ color: rgb(40, 79, 114);
/* oklch */ color: oklch(41.6% 0.074 247.6);

Tailwind

colors: {
  custom: {
    50: '#6a809a',
    500: '#284f72',
    950: '#000000',
  },
}

SCSS

$custom: #284f72;
$custom-light: #6a809a;
$custom-dark: #000000;

JSON

{
  "hex": "#284f72",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 114
  },
  "hsl": {
    "h": 208.378,
    "s": 48.052,
    "l": 30.196
  },
  "oklch": {
    "l": 0.41588,
    "c": 0.07373,
    "h": 247.6
  },
  "luminance": 0.07258
}

Semantic roles & 50–950 ramp

primary

#284F72

secondary

#A47952

accent

#9050D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #284F72

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

Preview Lab → · Contrast checker → · Palette generator →