#647DDA#647DDA

#647DDA is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.4% C 0.144 H 270.4°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#647DDA
RGB	rgb(100, 125, 218)
HSL	hsl(227, 61%, 62%)
HSV	hsv(227, 54%, 85%)
CMYK	cmyk(54.1%, 42.7%, 0%, 14.5%)
CIE-LAB	lab(54.49, 17.56, -50.52)
CIE-LCH	lch(54.49, 53.48, 289.16°)
OKLab	oklab(61.4% 0.001 -0.1435)
OKLCH	oklch(61.4% 0.144 270.4)
XYZ	xyz(25.2399, 22.4367, 69.3168)
Luminance	0.2244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DDA #DAC164

analogous

#64B8DA #647DDA #8664DA

triadic

#647DDA #DA647D #7DDA64

tetradic

#647DDA #DA64B8 #DAC164 #64DA86

square

#647DDA #DA64B8 #DAC164 #64DA86

split-complementary

#647DDA #DA8664 #B8DA64

monochromatic

#263F9E #3354CE #647DDA #95A6E6 #C7D0F2

Accessibility & contrast

On white

3.83

#647DDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#647DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DDA

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DDA	#FFFFFF	#000000	##000000
##647DDA	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5588DE

Deuteranopia (green-blind)

#477DD8

Tritanopia (blue-blind)

#2591A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #647dda;
/* rgb */ color: rgb(100, 125, 218);
/* oklch */ color: oklch(61.4% 0.144 270.4);

Tailwind

colors: {
  custom: {
    50: '#98a2e6',
    500: '#647dda',
    950: '#000000',
  },
}

SCSS

$custom: #647dda;
$custom-light: #98a2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#647dda",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 218
  },
  "hsl": {
    "h": 227.288,
    "s": 61.458,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61402,
    "c": 0.14355,
    "h": 270.4
  },
  "luminance": 0.22439
}

Semantic roles & 50–950 ramp

primary

#647DDA

secondary

#E2D9B7

accent

#A51CC9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #647DDA

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

Preview Lab → · Contrast checker → · Palette generator →