#647BC0#647BC0

#647BC0 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.5% C 0.109 H 268.9°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#647BC0
RGB	rgb(100, 123, 192)
HSL	hsl(225, 42%, 57%)
HSV	hsv(225, 48%, 75%)
CMYK	cmyk(47.9%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(52.60, 10.62, -38.76)
CIE-LCH	lch(52.60, 40.19, 285.32°)
OKLab	oklab(59.51% -0.002 -0.1092)
OKLCH	oklch(59.51% 0.109 268.9)
XYZ	xyz(21.8499, 20.6797, 52.6992)
Luminance	0.2068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BC0 #C0A964

analogous

#64A9C0 #647BC0 #7B64C0

triadic

#647BC0 #C0647B #7BC064

tetradic

#647BC0 #C064A9 #C0A964 #64C07B

square

#647BC0 #C064A9 #C0A964 #64C07B

split-complementary

#647BC0 #C07B64 #A9C064

monochromatic

#314379 #435BA4 #647BC0 #90A0D2 #BBC5E3

Accessibility & contrast

On white

4.09

#647BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#647BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BC0

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BC0	#FFFFFF	#000000	##000000
##647BC0	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6182C3

Deuteranopia (green-blind)

#587ABE

Tritanopia (blue-blind)

#408A94

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647bc0;
/* rgb */ color: rgb(100, 123, 192);
/* oklch */ color: oklch(59.5% 0.109 268.9);

Tailwind

colors: {
  custom: {
    50: '#95a0d3',
    500: '#647bc0',
    950: '#000000',
  },
}

SCSS

$custom: #647bc0;
$custom-light: #95a0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#647bc0",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 225,
    "s": 42.202,
    "l": 57.255
  },
  "oklch": {
    "l": 0.59507,
    "c": 0.10921,
    "h": 268.9
  },
  "luminance": 0.20681
}

Semantic roles & 50–950 ramp

primary

#647BC0

secondary

#D3C9AD

accent

#B356D2

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #647BC0

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

Preview Lab → · Contrast checker → · Palette generator →