#647D89#647D89

#647D89 is a mid, muted cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.034 H 228.7°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#647D89
RGB	rgb(100, 125, 137)
HSL	hsl(199, 16%, 46%)
HSV	hsv(199, 27%, 54%)
CMYK	cmyk(27%, 8.8%, 0%, 46.3%)
CIE-LAB	lab(50.90, -6.08, -9.47)
CIE-LCH	lch(50.90, 11.25, 237.30°)
OKLab	oklab(57.43% -0.0227 -0.0258)
OKLCH	oklch(57.43% 0.034 228.7)
XYZ	xyz(17.1032, 19.1820, 26.4634)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647D89 #897064

analogous

#648983 #647D89 #646B89

triadic

#647D89 #89647D #7D8964

tetradic

#647D89 #836489 #897064 #6B8964

square

#647D89 #836489 #897064 #6B8964

split-complementary

#647D89 #89646B #898364

monochromatic

#303C42 #4A5D66 #647D89 #859BA6 #A8B8BF

Accessibility & contrast

On white

4.34

#647D89 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#647D89 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647D89

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647D89	#FFFFFF	#000000	##000000
##647D89	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#777C8A

Deuteranopia (green-blind)

#717789

Tritanopia (blue-blind)

#598181

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #647d89;
/* rgb */ color: rgb(100, 125, 137);
/* oklch */ color: oklch(57.4% 0.034 228.7);

Tailwind

colors: {
  custom: {
    50: '#91a2ab',
    500: '#647d89',
    950: '#000000',
  },
}

SCSS

$custom: #647d89;
$custom-light: #91a2ab;
$custom-dark: #000000;

JSON

{
  "hex": "#647d89",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 137
  },
  "hsl": {
    "h": 199.459,
    "s": 15.612,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57432,
    "c": 0.03436,
    "h": 228.7
  },
  "luminance": 0.19183
}

Semantic roles & 50–950 ramp

primary

#647D89

secondary

#AEA19B

accent

#876FB8

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0D0F10

muted

#7D7E7F

Preview Lab

Preview with #647D89

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

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