#647BDA#647BDA

#647BDA is a mid, vivid blue. Relative luminance 0.219; OKLCH L 61.0% C 0.146 H 271.3°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#647BDA
RGB	rgb(100, 123, 218)
HSL	hsl(228, 61%, 62%)
HSV	hsv(228, 54%, 85%)
CMYK	cmyk(54.1%, 43.6%, 0%, 14.5%)
CIE-LAB	lab(53.96, 18.77, -51.36)
CIE-LCH	lch(53.96, 54.69, 290.07°)
OKLab	oklab(61% 0.0032 -0.146)
OKLCH	oklch(61% 0.146 271.3)
XYZ	xyz(24.9892, 21.9354, 69.2332)
Luminance	0.2194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BDA #DAC364

analogous

#64B6DA #647BDA #8864DA

triadic

#647BDA #DA647B #7BDA64

tetradic

#647BDA #DA64B6 #DAC364 #64DA88

square

#647BDA #DA64B6 #DAC364 #64DA88

split-complementary

#647BDA #DA8864 #B6DA64

monochromatic

#263D9E #3351CE #647BDA #95A5E6 #C7CFF2

Accessibility & contrast

On white

3.90

#647BDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#647BDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BDA

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BDA	#FFFFFF	#000000	##000000
##647BDA	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5286DE

Deuteranopia (green-blind)

#447CD8

Tritanopia (blue-blind)

#2690A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647bda;
/* rgb */ color: rgb(100, 123, 218);
/* oklch */ color: oklch(61.0% 0.146 271.3);

Tailwind

colors: {
  custom: {
    50: '#98a0e6',
    500: '#647bda',
    950: '#000000',
  },
}

SCSS

$custom: #647bda;
$custom-light: #98a0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#647bda",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 218
  },
  "hsl": {
    "h": 228.305,
    "s": 61.458,
    "l": 62.353
  },
  "oklch": {
    "l": 0.60997,
    "c": 0.14608,
    "h": 271.3
  },
  "luminance": 0.21937
}

Semantic roles & 50–950 ramp

primary

#647BDA

secondary

#E2DAB7

accent

#A71CC9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #647BDA

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

Preview Lab → · Contrast checker → · Palette generator →