#647FBD#647FBD

#647FBD is a mid, moderate blue. Relative luminance 0.216; OKLCH L 60.2% C 0.100 H 265.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#647FBD
RGB	rgb(100, 127, 189)
HSL	hsl(222, 40%, 57%)
HSV	hsv(222, 47%, 74%)
CMYK	cmyk(47.1%, 32.8%, 0%, 25.9%)
CIE-LAB	lab(53.56, 7.30, -35.53)
CIE-LCH	lch(53.56, 36.27, 281.61°)
OKLab	oklab(60.2% -0.0077 -0.0998)
OKLCH	oklch(60.2% 0.1 265.6)
XYZ	xyz(22.0272, 21.5608, 51.1352)
Luminance	0.2156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FBD #BDA264

analogous

#64ABBD #647FBD #7664BD

triadic

#647FBD #BD647F #7FBD64

tetradic

#647FBD #BD64AB #BDA264 #64BD76

square

#647FBD #BD64AB #BDA264 #64BD76

split-complementary

#647FBD #BD7664 #ABBD64

monochromatic

#324675 #4460A0 #647FBD #8FA2CF #BAC6E2

Accessibility & contrast

On white

3.95

#647FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#647FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FBD

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FBD	#FFFFFF	#000000	##000000
##647FBD	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6884C0

Deuteranopia (green-blind)

#5F7CBC

Tritanopia (blue-blind)

#418C95

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647fbd;
/* rgb */ color: rgb(100, 127, 189);
/* oklch */ color: oklch(60.2% 0.100 265.6);

Tailwind

colors: {
  custom: {
    50: '#95a3d1',
    500: '#647fbd',
    950: '#000000',
  },
}

SCSS

$custom: #647fbd;
$custom-light: #95a3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#647fbd",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 189
  },
  "hsl": {
    "h": 221.798,
    "s": 40.271,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60204,
    "c": 0.1001,
    "h": 265.6
  },
  "luminance": 0.21562
}

Semantic roles & 50–950 ramp

primary

#647FBD

secondary

#D1C6AC

accent

#AC58D0

background

#F9FAFC

surface

#F2F3F9

border

#CCCDD2

text

#0E0F14

muted

#7E7F82

Preview Lab

Preview with #647FBD

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

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