#284D64#284D64

#284D64 is a dark, muted cyan. Relative luminance 0.067; OKLCH L 40.3% C 0.058 H 237.8°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#284D64
RGB	rgb(40, 77, 100)
HSL	hsl(203, 43%, 27%)
HSV	hsv(203, 60%, 39%)
CMYK	cmyk(60%, 23%, 0%, 60.8%)
CIE-LAB	lab(31.06, -5.69, -17.43)
CIE-LCH	lch(31.06, 18.33, 251.92°)
OKLab	oklab(40.32% -0.0307 -0.0487)
OKLCH	oklch(40.32% 0.058 237.8)
XYZ	xyz(5.8283, 6.6785, 13.0360)
Luminance	0.0668 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D64 #643F28

analogous

#28645D #284D64 #282F64

triadic

#284D64 #64284D #4D6428

tetradic

#284D64 #5D2864 #643F28 #2F6428

square

#284D64 #5D2864 #643F28 #2F6428

split-complementary

#284D64 #64282F #645D28

monochromatic

#091116 #172B38 #284D64 #396F90 #4E90B8

Accessibility & contrast

On white

8.99

#284D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#284D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D64

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D64	#FFFFFF	#000000	##FFFFFF
##284D64	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424D65

Deuteranopia (green-blind)

#3A4664

Tritanopia (blue-blind)

#005355

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284d64;
/* rgb */ color: rgb(40, 77, 100);
/* oklch */ color: oklch(40.3% 0.058 237.8);

Tailwind

colors: {
  custom: {
    50: '#677e90',
    500: '#284d64',
    950: '#000000',
  },
}

SCSS

$custom: #284d64;
$custom-light: #677e90;
$custom-dark: #000000;

JSON

{
  "hex": "#284d64",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 100
  },
  "hsl": {
    "h": 203,
    "s": 42.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.40321,
    "c": 0.05756,
    "h": 237.8
  },
  "luminance": 0.06679
}

Semantic roles & 50–950 ramp

primary

#284D64

secondary

#976C51

accent

#8555D3

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #284D64

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

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