#647FCC#647FCC

#647FCC is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.0% C 0.121 H 268.1°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#647FCC
RGB	rgb(100, 127, 204)
HSL	hsl(224, 50%, 60%)
HSV	hsv(224, 51%, 80%)
CMYK	cmyk(51%, 37.7%, 0%, 20%)
CIE-LAB	lab(54.29, 11.92, -42.93)
CIE-LCH	lch(54.29, 44.55, 285.52°)
OKLab	oklab(61.01% -0.0041 -0.1213)
OKLCH	oklch(61.01% 0.121 268.1)
XYZ	xyz(23.7404, 22.2461, 60.1580)
Luminance	0.2225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647FCC #CCB164

analogous

#64B3CC #647FCC #7D64CC

triadic

#647FCC #CC647F #7FCC64

tetradic

#647FCC #CC64B3 #CCB164 #64CC7D

square

#647FCC #CC64B3 #CCB164 #64CC7D

split-complementary

#647FCC #CC7D64 #B3CC64

monochromatic

#2D4589 #3C5CB7 #647FCC #92A5DB #C0CBEA

Accessibility & contrast

On white

3.85

#647FCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#647FCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647FCC

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647FCC	#FFFFFF	#000000	##000000
##647FCC	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6187CF

Deuteranopia (green-blind)

#557ECA

Tritanopia (blue-blind)

#358F9C

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647fcc;
/* rgb */ color: rgb(100, 127, 204);
/* oklch */ color: oklch(61.0% 0.121 268.1);

Tailwind

colors: {
  custom: {
    50: '#96a3dc',
    500: '#647fcc',
    950: '#000000',
  },
}

SCSS

$custom: #647fcc;
$custom-light: #96a3dc;
$custom-dark: #000000;

JSON

{
  "hex": "#647fcc",
  "rgb": {
    "r": 100,
    "g": 127,
    "b": 204
  },
  "hsl": {
    "h": 224.423,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.61008,
    "c": 0.12139,
    "h": 268.1
  },
  "luminance": 0.22248
}

Semantic roles & 50–950 ramp

primary

#647FCC

secondary

#DAD0B2

accent

#B64EDA

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #647FCC

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

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