#647EC3#647EC3

#647EC3 is a mid, moderate blue. Relative luminance 0.216; OKLCH L 60.3% C 0.110 H 267.4°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#647EC3
RGB	rgb(100, 126, 195)
HSL	hsl(224, 44%, 58%)
HSV	hsv(224, 49%, 76%)
CMYK	cmyk(48.7%, 35.4%, 0%, 23.5%)
CIE-LAB	lab(53.57, 9.73, -38.94)
CIE-LCH	lch(53.57, 40.14, 284.03°)
OKLab	oklab(60.31% -0.005 -0.1097)
OKLCH	oklch(60.31% 0.11 267.4)
XYZ	xyz(22.5635, 21.5697, 54.5936)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EC3 #C3A964

analogous

#64ADC3 #647EC3 #7964C3

triadic

#647EC3 #C3647E #7EC364

tetradic

#647EC3 #C364AD #C3A964 #64C379

square

#647EC3 #C364AD #C3A964 #64C379

split-complementary

#647EC3 #C37964 #ADC364

monochromatic

#30457C #415EA9 #647EC3 #90A3D4 #BCC7E5

Accessibility & contrast

On white

3.95

#647EC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#647EC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EC3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EC3	#FFFFFF	#000000	##000000
##647EC3	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6485C6

Deuteranopia (green-blind)

#5A7CC1

Tritanopia (blue-blind)

#3D8D97

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #647ec3;
/* rgb */ color: rgb(100, 126, 195);
/* oklch */ color: oklch(60.3% 0.110 267.4);

Tailwind

colors: {
  custom: {
    50: '#95a3d5',
    500: '#647ec3',
    950: '#000000',
  },
}

SCSS

$custom: #647ec3;
$custom-light: #95a3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#647ec3",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 195
  },
  "hsl": {
    "h": 223.579,
    "s": 44.186,
    "l": 57.843
  },
  "oklch": {
    "l": 0.60305,
    "c": 0.10983,
    "h": 267.4
  },
  "luminance": 0.21571
}

Semantic roles & 50–950 ramp

primary

#647EC3

secondary

#D4CAAE

accent

#B154D4

background

#F9FAFD

surface

#F2F3FA

border

#CCCDD3

text

#0E0F14

muted

#7E7F83

Preview Lab

Preview with #647EC3

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

Preview Lab → · Contrast checker → · Palette generator →