#284F73#284F73

#284F73 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.6% C 0.075 H 248.3°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#284F73
RGB	rgb(40, 79, 115)
HSL	hsl(209, 48%, 30%)
HSV	hsv(209, 65%, 45%)
CMYK	cmyk(65.2%, 31.3%, 0%, 54.9%)
CIE-LAB	lab(32.44, -1.57, -24.74)
CIE-LCH	lch(32.44, 24.79, 266.36°)
OKLab	oklab(41.64% -0.0277 -0.0698)
OKLCH	oklch(41.64% 0.075 248.3)
XYZ	xyz(6.7644, 7.2802, 17.2651)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F73 #734C28

analogous

#287371 #284F73 #282973

triadic

#284F73 #73284F #4F7328

tetradic

#284F73 #712873 #734C28 #297328

square

#284F73 #712873 #734C28 #297328

split-complementary

#284F73 #732829 #737128

monochromatic

#081118 #183046 #284F73 #386EA0 #528DC3

Accessibility & contrast

On white

8.55

#284F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#284F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F73

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F73	#FFFFFF	#000000	##FFFFFF
##284F73	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5075

Deuteranopia (green-blind)

#354972

Tritanopia (blue-blind)

#00575C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284f73;
/* rgb */ color: rgb(40, 79, 115);
/* oklch */ color: oklch(41.6% 0.075 248.3);

Tailwind

colors: {
  custom: {
    50: '#6a809b',
    500: '#284f73',
    950: '#000000',
  },
}

SCSS

$custom: #284f73;
$custom-light: #6a809b;
$custom-dark: #000000;

JSON

{
  "hex": "#284f73",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 115
  },
  "hsl": {
    "h": 208.8,
    "s": 48.387,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41644,
    "c": 0.07508,
    "h": 248.3
  },
  "luminance": 0.07281
}

Semantic roles & 50–950 ramp

primary

#284F73

secondary

#A57A52

accent

#9150D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #284F73

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

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