#647F9A#647F9A

#647F9A is a mid, muted cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.052 H 248.7°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX#647F9A
RGBrgb(100, 127, 154)
HSLhsl(210, 21%, 50%)
HSVhsv(210, 35%, 60%)
CMYKcmyk(35.1%, 17.5%, 0%, 39.6%)
CIE-LABlab(52.09, -2.79, -17.61)
CIE-LCHlch(52.09, 17.83, 261.00°)
OKLaboklab(58.57% -0.0189 -0.0485)
OKLCHoklch(58.57% 0.052 248.7)
XYZxyz(18.6758, 20.2203, 33.4844)
Luminance0.2022 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#647F9A #9A7F64
analogous
#649A9A #647F9A #64649A
triadic
#647F9A #9A647F #7F9A64
tetradic
#647F9A #9A649A #9A7F64 #649A64
square
#647F9A #9A649A #9A7F64 #649A64
split-complementary
#647F9A #9A6464 #9A9A64
monochromatic
#344250 #4C6075 #647F9A #899EB2 #AEBCCA

Accessibility & contrast

On white

4.16
#647F9A on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.04
#647F9A on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647F9A
5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##647F9A#FFFFFF#000000##000000
##647F9A1.004.165.045.04
#FFFFFF4.161.0021.0021.00
#0000005.0421.001.001.00
##0000005.0421.001.001.00

Color blindness preview

Protanopia (red-blind)
#757F9B
Deuteranopia (green-blind)
#6E7A99
Tritanopia (blue-blind)
#538588
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #647f9a;
/* rgb */ color: rgb(100, 127, 154);
/* oklch */ color: oklch(58.6% 0.052 248.7);
Tailwind
colors: {
  custom: {
    50: '#92a4b7',
    500: '#647f9a',
    950: '#000000',
  },
}
SCSS
$custom: #647f9a;
$custom-light: #92a4b7;
$custom-dark: #000000;
JSON
{
  "hex": "#647f9a",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 154
  },
  "hsl": {
    "h": 210,
    "s": 21.26,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58567,
    "c": 0.05205,
    "h": 248.7
  },
  "luminance": 0.20221
}

Semantic roles & 50–950 ramp

primary
#647F9A
secondary
#B9ADA1
accent
#946ABE
background
#F9FAFB
surface
#F1F3F6
border
#CBCDD0
text
#0D0F11
muted
#7E7F80

Preview Lab

Preview with #647F9A

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

Preview Lab → · Contrast checker → · Palette generator →

#647F9A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva