#647BD8#647BD8

#647BD8 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.9% C 0.143 H 271.1°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#647BD8
RGB	rgb(100, 123, 216)
HSL	hsl(228, 60%, 62%)
HSV	hsv(228, 54%, 85%)
CMYK	cmyk(53.7%, 43.1%, 0%, 15.3%)
CIE-LAB	lab(53.85, 18.13, -50.41)
CIE-LCH	lch(53.85, 53.57, 289.78°)
OKLab	oklab(60.88% 0.0029 -0.1432)
OKLCH	oklch(60.88% 0.143 271.1)
XYZ	xyz(24.7291, 21.8314, 67.8632)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BD8 #D8C164

analogous

#64B5D8 #647BD8 #8764D8

triadic

#647BD8 #D8647B #7BD864

tetradic

#647BD8 #D864B5 #D8C164 #64D887

square

#647BD8 #D864B5 #D8C164 #64D887

split-complementary

#647BD8 #D88764 #B5D864

monochromatic

#273E9B #3351CC #647BD8 #95A5E4 #C6CEF1

Accessibility & contrast

On white

3.91

#647BD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#647BD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BD8

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BD8	#FFFFFF	#000000	##000000
##647BD8	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5386DC

Deuteranopia (green-blind)

#467CD6

Tritanopia (blue-blind)

#298F9F

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #647bd8;
/* rgb */ color: rgb(100, 123, 216);
/* oklch */ color: oklch(60.9% 0.143 271.1);

Tailwind

colors: {
  custom: {
    50: '#98a0e4',
    500: '#647bd8',
    950: '#000000',
  },
}

SCSS

$custom: #647bd8;
$custom-light: #98a0e4;
$custom-dark: #000000;

JSON

{
  "hex": "#647bd8",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 216
  },
  "hsl": {
    "h": 228.103,
    "s": 59.794,
    "l": 61.961
  },
  "oklch": {
    "l": 0.60876,
    "c": 0.14328,
    "h": 271.1
  },
  "luminance": 0.21833
}

Semantic roles & 50–950 ramp

primary

#647BD8

secondary

#E1D9B7

accent

#A61EC7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #647BD8

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

Preview Lab → · Contrast checker → · Palette generator →