#647E89#647E89

#647E89 is a mid, muted cyan. Relative luminance 0.194; OKLCH L 57.7% C 0.034 H 225.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#647E89
RGB	rgb(100, 126, 137)
HSL	hsl(198, 16%, 46%)
HSV	hsv(198, 27%, 54%)
CMYK	cmyk(27%, 8%, 0%, 46.3%)
CIE-LAB	lab(51.19, -6.65, -9.03)
CIE-LCH	lch(51.19, 11.21, 233.63°)
OKLab	oklab(57.67% -0.0241 -0.0246)
OKLCH	oklch(57.67% 0.034 225.6)
XYZ	xyz(17.2304, 19.4365, 26.5058)
Luminance	0.1944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647E89 #896F64

analogous

#648982 #647E89 #646C89

triadic

#647E89 #89647E #7E8964

tetradic

#647E89 #826489 #896F64 #6C8964

square

#647E89 #826489 #896F64 #6C8964

split-complementary

#647E89 #89646C #898264

monochromatic

#303D42 #4A5D66 #647E89 #859CA6 #A8B8BF

Accessibility & contrast

On white

4.30

#647E89 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#647E89 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647E89

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647E89	#FFFFFF	#000000	##000000
##647E89	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#787D8A

Deuteranopia (green-blind)

#727889

Tritanopia (blue-blind)

#598181

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #647e89;
/* rgb */ color: rgb(100, 126, 137);
/* oklch */ color: oklch(57.7% 0.034 225.6);

Tailwind

colors: {
  custom: {
    50: '#91a3ab',
    500: '#647e89',
    950: '#000000',
  },
}

SCSS

$custom: #647e89;
$custom-light: #91a3ab;
$custom-dark: #000000;

JSON

{
  "hex": "#647e89",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 137
  },
  "hsl": {
    "h": 197.838,
    "s": 15.612,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57665,
    "c": 0.03445,
    "h": 225.6
  },
  "luminance": 0.19437
}

Semantic roles & 50–950 ramp

primary

#647E89

secondary

#AEA09B

accent

#856FB8

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0D0F10

muted

#7D7F7F

Preview Lab

Preview with #647E89

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

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