#647BC4#647BC4

#647BC4 is a mid, moderate blue. Relative luminance 0.209; OKLCH L 59.7% C 0.115 H 269.5°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#647BC4
RGB	rgb(100, 123, 196)
HSL	hsl(226, 45%, 58%)
HSV	hsv(226, 49%, 77%)
CMYK	cmyk(49%, 37.2%, 0%, 23.1%)
CIE-LAB	lab(52.80, 11.85, -40.73)
CIE-LCH	lch(52.80, 42.42, 286.22°)
OKLab	oklab(59.72% -0.0011 -0.1149)
OKLCH	oklch(59.72% 0.115 269.5)
XYZ	xyz(22.2991, 20.8594, 55.0651)
Luminance	0.2086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647BC4 #C4AD64

analogous

#64ABC4 #647BC4 #7D64C4

triadic

#647BC4 #C4647B #7BC464

tetradic

#647BC4 #C464AB #C4AD64 #64C47D

square

#647BC4 #C464AB #C4AD64 #64C47D

split-complementary

#647BC4 #C47D64 #ABC464

monochromatic

#30437E #415AAA #647BC4 #90A1D5 #BDC6E6

Accessibility & contrast

On white

4.06

#647BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#647BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647BC4

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647BC4	#FFFFFF	#000000	##000000
##647BC4	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C7

Deuteranopia (green-blind)

#557AC2

Tritanopia (blue-blind)

#3D8A96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647bc4;
/* rgb */ color: rgb(100, 123, 196);
/* oklch */ color: oklch(59.7% 0.115 269.5);

Tailwind

colors: {
  custom: {
    50: '#95a0d6',
    500: '#647bc4',
    950: '#000000',
  },
}

SCSS

$custom: #647bc4;
$custom-light: #95a0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#647bc4",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 196
  },
  "hsl": {
    "h": 225.625,
    "s": 44.86,
    "l": 58.039
  },
  "oklch": {
    "l": 0.59725,
    "c": 0.11495,
    "h": 269.5
  },
  "luminance": 0.20861
}

Semantic roles & 50–950 ramp

primary

#647BC4

secondary

#D5CCAF

accent

#B653D5

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #647BC4

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

Preview Lab → · Contrast checker → · Palette generator →