#284D66#284D66

#284D66 is a dark, muted cyan. Relative luminance 0.067; OKLCH L 40.4% C 0.060 H 240.1°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#284D66
RGB	rgb(40, 77, 102)
HSL	hsl(204, 44%, 28%)
HSV	hsv(204, 61%, 40%)
CMYK	cmyk(60.8%, 24.5%, 0%, 60%)
CIE-LAB	lab(31.16, -4.99, -18.55)
CIE-LCH	lch(31.16, 19.21, 254.95°)
OKLab	oklab(40.42% -0.0299 -0.0519)
OKLCH	oklch(40.42% 0.06 240.1)
XYZ	xyz(5.9263, 6.7176, 13.5521)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D66 #664128

analogous

#286660 #284D66 #282E66

triadic

#284D66 #66284D #4D6628

tetradic

#284D66 #602866 #664128 #2E6628

square

#284D66 #602866 #664128 #2E6628

split-complementary

#284D66 #66282E #666028

monochromatic

#091116 #172C3A #284D66 #396E92 #4F8FBA

Accessibility & contrast

On white

8.96

#284D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#284D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D66

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D66	#FFFFFF	#000000	##FFFFFF
##284D66	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424D67

Deuteranopia (green-blind)

#394766

Tritanopia (blue-blind)

#005355

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284d66;
/* rgb */ color: rgb(40, 77, 102);
/* oklch */ color: oklch(40.4% 0.060 240.1);

Tailwind

colors: {
  custom: {
    50: '#687e91',
    500: '#284d66',
    950: '#000000',
  },
}

SCSS

$custom: #284d66;
$custom-light: #687e91;
$custom-dark: #000000;

JSON

{
  "hex": "#284d66",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 102
  },
  "hsl": {
    "h": 204.194,
    "s": 43.662,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40424,
    "c": 0.05993,
    "h": 240.1
  },
  "luminance": 0.06718
}

Semantic roles & 50–950 ramp

primary

#284D66

secondary

#996E51

accent

#8854D3

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0D

muted

#7A7C7D

Preview Lab

Preview with #284D66

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

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