#647D99#647D99

#647D99 is a mid, muted cyan. Relative luminance 0.197; OKLCH L 58.1% C 0.052 H 251.6°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#647D99
RGB	rgb(100, 125, 153)
HSL	hsl(212, 21%, 50%)
HSV	hsv(212, 35%, 60%)
CMYK	cmyk(34.6%, 18.3%, 0%, 40%)
CIE-LAB	lab(51.47, -1.90, -17.97)
CIE-LCH	lch(51.47, 18.07, 263.97°)
OKLab	oklab(58.07% -0.0165 -0.0495)
OKLCH	oklch(58.07% 0.052 251.6)
XYZ	xyz(18.3372, 19.6756, 32.9624)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647D99 #998064

analogous

#649899 #647D99 #656499

triadic

#647D99 #99647D #7D9964

tetradic

#647D99 #996498 #998064 #649965

square

#647D99 #996498 #998064 #649965

split-complementary

#647D99 #996564 #989964

monochromatic

#34414F #4C5F74 #647D99 #899CB2 #AEBBCA

Accessibility & contrast

On white

4.26

#647D99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#647D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647D99

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647D99	#FFFFFF	#000000	##000000
##647D99	1.00	4.26	4.94	4.94
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#737E9A

Deuteranopia (green-blind)

#6C7898

Tritanopia (blue-blind)

#538386

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #647d99;
/* rgb */ color: rgb(100, 125, 153);
/* oklch */ color: oklch(58.1% 0.052 251.6);

Tailwind

colors: {
  custom: {
    50: '#92a2b7',
    500: '#647d99',
    950: '#000000',
  },
}

SCSS

$custom: #647d99;
$custom-light: #92a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#647d99",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 211.698,
    "s": 20.949,
    "l": 49.608
  },
  "oklch": {
    "l": 0.58069,
    "c": 0.05217,
    "h": 251.6
  },
  "luminance": 0.19676
}

Semantic roles & 50–950 ramp

primary

#647D99

secondary

#B9ADA0

accent

#966ABE

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0F11

muted

#7E7E80

Preview Lab

Preview with #647D99

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

Preview Lab → · Contrast checker → · Palette generator →