#647DCC#647DCC

#647DCC is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.6% C 0.124 H 269.2°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#647DCC
RGB	rgb(100, 125, 204)
HSL	hsl(226, 50%, 60%)
HSV	hsv(226, 51%, 80%)
CMYK	cmyk(51%, 38.7%, 0%, 20%)
CIE-LAB	lab(53.74, 13.13, -43.79)
CIE-LCH	lch(53.74, 45.71, 286.69°)
OKLab	oklab(60.59% -0.0017 -0.1238)
OKLCH	oklch(60.59% 0.124 269.2)
XYZ	xyz(23.4847, 21.7346, 60.0727)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DCC #CCB364

analogous

#64B1CC #647DCC #7F64CC

triadic

#647DCC #CC647D #7DCC64

tetradic

#647DCC #CC64B1 #CCB364 #64CC7F

square

#647DCC #CC64B1 #CCB364 #64CC7F

split-complementary

#647DCC #CC7F64 #B1CC64

monochromatic

#2D4389 #3C5AB7 #647DCC #92A4DB #C0CAEA

Accessibility & contrast

On white

3.93

#647DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#647DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DCC

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DCC	#FFFFFF	#000000	##000000
##647DCC	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E85CF

Deuteranopia (green-blind)

#537CCA

Tritanopia (blue-blind)

#368E9B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647dcc;
/* rgb */ color: rgb(100, 125, 204);
/* oklch */ color: oklch(60.6% 0.124 269.2);

Tailwind

colors: {
  custom: {
    50: '#96a2dc',
    500: '#647dcc',
    950: '#000000',
  },
}

SCSS

$custom: #647dcc;
$custom-light: #96a2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#647dcc",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 204
  },
  "hsl": {
    "h": 225.577,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60589,
    "c": 0.12385,
    "h": 269.2
  },
  "luminance": 0.21736
}

Semantic roles & 50–950 ramp

primary

#647DCC

secondary

#DAD0B2

accent

#B84EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0F15

muted

#7E7E83

Preview Lab

Preview with #647DCC

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

Preview Lab → · Contrast checker → · Palette generator →