#647C99#647C99

#647C99 is a mid, muted cyan. Relative luminance 0.194; OKLCH L 57.8% C 0.053 H 253.4°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#647C99
RGB	rgb(100, 124, 153)
HSL	hsl(213, 21%, 50%)
HSV	hsv(213, 35%, 60%)
CMYK	cmyk(34.6%, 19%, 0%, 40%)
CIE-LAB	lab(51.18, -1.32, -18.41)
CIE-LCH	lch(51.18, 18.46, 265.91°)
OKLab	oklab(57.84% -0.0151 -0.0507)
OKLCH	oklch(57.84% 0.053 253.4)
XYZ	xyz(18.2112, 19.4237, 32.9204)
Luminance	0.1943 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C99 #998164

analogous

#649799 #647C99 #666499

triadic

#647C99 #99647C #7C9964

tetradic

#647C99 #996497 #998164 #649966

square

#647C99 #996497 #998164 #649966

split-complementary

#647C99 #996664 #979964

monochromatic

#34404F #4C5E74 #647C99 #899BB2 #AEBACA

Accessibility & contrast

On white

4.30

#647C99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#647C99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647C99

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C99	#FFFFFF	#000000	##000000
##647C99	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)

#717D9A

Deuteranopia (green-blind)

#6B7898

Tritanopia (blue-blind)

#548286

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #647c99;
/* rgb */ color: rgb(100, 124, 153);
/* oklch */ color: oklch(57.8% 0.053 253.4);

Tailwind

colors: {
  custom: {
    50: '#92a1b7',
    500: '#647c99',
    950: '#000000',
  },
}

SCSS

$custom: #647c99;
$custom-light: #92a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#647c99",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 153
  },
  "hsl": {
    "h": 212.83,
    "s": 20.949,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57842,
    "c": 0.05294,
    "h": 253.4
  },
  "luminance": 0.19425
}

Semantic roles & 50–950 ramp

primary

#647C99

secondary

#B9AEA0

accent

#986ABE

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0F11

muted

#7E7E80

Preview Lab

Preview with #647C99

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

Preview Lab → · Contrast checker → · Palette generator →