#647BBF#647BBF

#647BBF is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.5% C 0.108 H 268.8°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#647BBF
RGB	rgb(100, 123, 191)
HSL	hsl(225, 42%, 57%)
HSV	hsv(225, 48%, 75%)
CMYK	cmyk(47.6%, 35.6%, 0%, 25.1%)
CIE-LAB	lab(52.55, 10.31, -38.26)
CIE-LCH	lch(52.55, 39.63, 285.08°)
OKLab	oklab(59.45% -0.0022 -0.1077)
OKLCH	oklch(59.45% 0.108 268.8)
XYZ	xyz(21.7394, 20.6355, 52.1176)
Luminance	0.2064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BBF #BFA864

analogous

#64A9BF #647BBF #7B64BF

triadic

#647BBF #BF647B #7BBF64

tetradic

#647BBF #BF64A9 #BFA864 #64BF7B

square

#647BBF #BF64A9 #BFA864 #64BF7B

split-complementary

#647BBF #BF7B64 #A9BF64

monochromatic

#314377 #435BA3 #647BBF #8FA0D1 #BBC5E3

Accessibility & contrast

On white

4.10

#647BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#647BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BBF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BBF	#FFFFFF	#000000	##000000
##647BBF	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C2

Deuteranopia (green-blind)

#587ABD

Tritanopia (blue-blind)

#408994

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647bbf;
/* rgb */ color: rgb(100, 123, 191);
/* oklch */ color: oklch(59.5% 0.108 268.8);

Tailwind

colors: {
  custom: {
    50: '#95a0d2',
    500: '#647bbf',
    950: '#000000',
  },
}

SCSS

$custom: #647bbf;
$custom-light: #95a0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#647bbf",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 191
  },
  "hsl": {
    "h": 224.835,
    "s": 41.553,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59453,
    "c": 0.10777,
    "h": 268.8
  },
  "luminance": 0.20637
}

Semantic roles & 50–950 ramp

primary

#647BBF

secondary

#D2C9AD

accent

#B256D1

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0E14

muted

#7E7E82

Preview Lab

Preview with #647BBF

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

Preview Lab → · Contrast checker → · Palette generator →