#647CDA#647CDA

#647CDA is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.2% C 0.145 H 270.8°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#647CDA
RGB	rgb(100, 124, 218)
HSL	hsl(228, 61%, 62%)
HSV	hsv(228, 54%, 85%)
CMYK	cmyk(54.1%, 43.1%, 0%, 14.5%)
CIE-LAB	lab(54.22, 18.16, -50.94)
CIE-LCH	lch(54.22, 54.08, 289.62°)
OKLab	oklab(61.2% 0.0021 -0.1448)
OKLCH	oklch(61.2% 0.145 270.8)
XYZ	xyz(25.1139, 22.1848, 69.2748)
Luminance	0.2219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CDA #DAC264

analogous

#64B7DA #647CDA #8764DA

triadic

#647CDA #DA647C #7CDA64

tetradic

#647CDA #DA64B7 #DAC264 #64DA87

square

#647CDA #DA64B7 #DAC264 #64DA87

split-complementary

#647CDA #DA8764 #B7DA64

monochromatic

#263E9E #3352CE #647CDA #95A6E6 #C7D0F2

Accessibility & contrast

On white

3.86

#647CDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#647CDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CDA

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CDA	#FFFFFF	#000000	##000000
##647CDA	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DE

Deuteranopia (green-blind)

#467DD8

Tritanopia (blue-blind)

#2691A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647cda;
/* rgb */ color: rgb(100, 124, 218);
/* oklch */ color: oklch(61.2% 0.145 270.8);

Tailwind

colors: {
  custom: {
    50: '#98a1e6',
    500: '#647cda',
    950: '#000000',
  },
}

SCSS

$custom: #647cda;
$custom-light: #98a1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#647cda",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 218
  },
  "hsl": {
    "h": 227.797,
    "s": 61.458,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61199,
    "c": 0.14482,
    "h": 270.8
  },
  "luminance": 0.22187
}

Semantic roles & 50–950 ramp

primary

#647CDA

secondary

#E2DAB7

accent

#A61CC9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #647CDA

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

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