#284F66#284F66

#284F66 is a dark, muted cyan. Relative luminance 0.070; OKLCH L 40.9% C 0.059 H 236.5°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#284F66
RGB	rgb(40, 79, 102)
HSL	hsl(202, 44%, 28%)
HSV	hsv(202, 61%, 40%)
CMYK	cmyk(60.8%, 22.5%, 0%, 60%)
CIE-LAB	lab(31.81, -6.24, -17.54)
CIE-LCH	lch(31.81, 18.62, 250.41°)
OKLab	oklab(40.94% -0.0324 -0.049)
OKLCH	oklch(40.94% 0.059 236.5)
XYZ	xyz(6.0684, 7.0018, 13.5995)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F66 #663F28

analogous

#28665E #284F66 #283066

triadic

#284F66 #66284F #4F6628

tetradic

#284F66 #5E2866 #663F28 #306628

square

#284F66 #5E2866 #663F28 #306628

split-complementary

#284F66 #662830 #665E28

monochromatic

#091116 #172D3A #284F66 #397192 #4F92BA

Accessibility & contrast

On white

8.75

#284F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#284F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F66

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F66	#FFFFFF	#000000	##FFFFFF
##284F66	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)

#444E67

Deuteranopia (green-blind)

#3C4866

Tritanopia (blue-blind)

#005557

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284f66;
/* rgb */ color: rgb(40, 79, 102);
/* oklch */ color: oklch(40.9% 0.059 236.5);

Tailwind

colors: {
  custom: {
    50: '#688091',
    500: '#284f66',
    950: '#000000',
  },
}

SCSS

$custom: #284f66;
$custom-light: #688091;
$custom-dark: #000000;

JSON

{
  "hex": "#284f66",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 102
  },
  "hsl": {
    "h": 202.258,
    "s": 43.662,
    "l": 27.843
  },
  "oklch": {
    "l": 0.40944,
    "c": 0.05877,
    "h": 236.5
  },
  "luminance": 0.07002
}

Semantic roles & 50–950 ramp

primary

#284F66

secondary

#996C51

accent

#8454D3

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #284F66

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

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