#647CBC#647CBC

#647CBC is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.5% C 0.102 H 267.6°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#647CBC
RGB	rgb(100, 124, 188)
HSL	hsl(224, 40%, 56%)
HSV	hsv(224, 47%, 74%)
CMYK	cmyk(46.8%, 34%, 0%, 26.3%)
CIE-LAB	lab(52.68, 8.80, -36.34)
CIE-LCH	lch(52.68, 37.39, 283.61°)
OKLab	oklab(59.51% -0.0042 -0.1021)
OKLCH	oklch(59.51% 0.102 267.6)
XYZ	xyz(21.5374, 20.7542, 50.4383)
Luminance	0.2076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647CBC #BCA464

analogous

#64A8BC #647CBC #7864BC

triadic

#647CBC #BC647C #7CBC64

tetradic

#647CBC #BC64A8 #BCA464 #64BC78

square

#647CBC #BC64A8 #BCA464 #64BC78

split-complementary

#647CBC #BC7864 #A8BC64

monochromatic

#324474 #445D9E #647CBC #8FA0CE #B9C4E1

Accessibility & contrast

On white

4.08

#647CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#647CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647CBC

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647CBC	#FFFFFF	#000000	##000000
##647CBC	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482BF

Deuteranopia (green-blind)

#5B7ABB

Tritanopia (blue-blind)

#428993

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647cbc;
/* rgb */ color: rgb(100, 124, 188);
/* oklch */ color: oklch(59.5% 0.102 267.6);

Tailwind

colors: {
  custom: {
    50: '#94a1d0',
    500: '#647cbc',
    950: '#000000',
  },
}

SCSS

$custom: #647cbc;
$custom-light: #94a1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#647cbc",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 188
  },
  "hsl": {
    "h": 223.636,
    "s": 39.64,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59507,
    "c": 0.10224,
    "h": 267.6
  },
  "luminance": 0.20755
}

Semantic roles & 50–950 ramp

primary

#647CBC

secondary

#D0C6AC

accent

#AF58D0

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #647CBC

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

Preview Lab → · Contrast checker → · Palette generator →