#647FBC#647FBC

#647FBC is a mid, moderate blue. Relative luminance 0.215; OKLCH L 60.2% C 0.099 H 265.4°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#647FBC
RGB	rgb(100, 127, 188)
HSL	hsl(222, 40%, 56%)
HSV	hsv(222, 47%, 74%)
CMYK	cmyk(46.8%, 32.4%, 0%, 26.3%)
CIE-LAB	lab(53.51, 7.00, -35.03)
CIE-LCH	lch(53.51, 35.73, 281.30°)
OKLab	oklab(60.15% -0.008 -0.0984)
OKLCH	oklch(60.15% 0.099 265.4)
XYZ	xyz(21.9191, 21.5176, 50.5655)
Luminance	0.2152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FBC #BCA164

analogous

#64ABBC #647FBC #7564BC

triadic

#647FBC #BC647F #7FBC64

tetradic

#647FBC #BC64AB #BCA164 #64BC75

square

#647FBC #BC64AB #BCA164 #64BC75

split-complementary

#647FBC #BC7564 #ABBC64

monochromatic

#324674 #44609E #647FBC #8FA2CE #B9C6E1

Accessibility & contrast

On white

3.96

#647FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#647FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FBC

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FBC	#FFFFFF	#000000	##000000
##647FBC	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6884BF

Deuteranopia (green-blind)

#5F7CBB

Tritanopia (blue-blind)

#428C95

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647fbc;
/* rgb */ color: rgb(100, 127, 188);
/* oklch */ color: oklch(60.2% 0.099 265.4);

Tailwind

colors: {
  custom: {
    50: '#94a3d0',
    500: '#647fbc',
    950: '#000000',
  },
}

SCSS

$custom: #647fbc;
$custom-light: #94a3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#647fbc",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 188
  },
  "hsl": {
    "h": 221.591,
    "s": 39.64,
    "l": 56.471
  },
  "oklch": {
    "l": 0.60153,
    "c": 0.09868,
    "h": 265.4
  },
  "luminance": 0.21519
}

Semantic roles & 50–950 ramp

primary

#647FBC

secondary

#D0C5AC

accent

#AB58D0

background

#F9FAFC

surface

#F2F3F9

border

#CCCDD2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #647FBC

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

Preview Lab → · Contrast checker → · Palette generator →