#647CCC#647CCC

#647CCC is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.125 H 269.8°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#647CCC
RGB	rgb(100, 124, 204)
HSL	hsl(226, 50%, 60%)
HSV	hsv(226, 51%, 80%)
CMYK	cmyk(51%, 39.2%, 0%, 20%)
CIE-LAB	lab(53.47, 13.73, -44.21)
CIE-LCH	lch(53.47, 46.30, 287.26°)
OKLab	oklab(60.38% -0.0005 -0.1251)
OKLCH	oklch(60.38% 0.125 269.8)
XYZ	xyz(23.3587, 21.4827, 60.0307)
Luminance	0.2148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CCC #CCB464

analogous

#64B0CC #647CCC #8064CC

triadic

#647CCC #CC647C #7CCC64

tetradic

#647CCC #CC64B0 #CCB464 #64CC80

square

#647CCC #CC64B0 #CCB464 #64CC80

split-complementary

#647CCC #CC8064 #B0CC64

monochromatic

#2D4289 #3C58B7 #647CCC #92A3DB #C0CAEA

Accessibility & contrast

On white

3.96

#647CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#647CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CCC

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CCC	#FFFFFF	#000000	##000000
##647CCC	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)

#5C85CF

Deuteranopia (green-blind)

#517CCA

Tritanopia (blue-blind)

#368D9A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647ccc;
/* rgb */ color: rgb(100, 124, 204);
/* oklch */ color: oklch(60.4% 0.125 269.8);

Tailwind

colors: {
  custom: {
    50: '#96a1dc',
    500: '#647ccc',
    950: '#000000',
  },
}

SCSS

$custom: #647ccc;
$custom-light: #96a1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#647ccc",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 226.154,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60381,
    "c": 0.1251,
    "h": 269.8
  },
  "luminance": 0.21484
}

Semantic roles & 50–950 ramp

primary

#647CCC

secondary

#DAD1B2

accent

#BA4EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #647CCC

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

Preview Lab → · Contrast checker → · Palette generator →