#647DBC#647DBC

#647DBC is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.7% C 0.101 H 266.9°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#647DBC
RGB	rgb(100, 125, 188)
HSL	hsl(223, 40%, 56%)
HSV	hsv(223, 47%, 74%)
CMYK	cmyk(46.8%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(52.96, 8.20, -35.90)
CIE-LCH	lch(52.96, 36.83, 282.86°)
OKLab	oklab(59.72% -0.0055 -0.1009)
OKLCH	oklch(59.72% 0.101 266.9)
XYZ	xyz(21.6633, 21.0061, 50.4803)
Luminance	0.2101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DBC #BCA364

analogous

#64A9BC #647DBC #7764BC

triadic

#647DBC #BC647D #7DBC64

tetradic

#647DBC #BC64A9 #BCA364 #64BC77

square

#647DBC #BC64A9 #BCA364 #64BC77

split-complementary

#647DBC #BC7764 #A9BC64

monochromatic

#324574 #445E9E #647DBC #8FA1CE #B9C5E1

Accessibility & contrast

On white

4.04

#647DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#647DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DBC

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DBC	#FFFFFF	#000000	##000000
##647DBC	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683BF

Deuteranopia (green-blind)

#5D7BBB

Tritanopia (blue-blind)

#428A94

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647dbc;
/* rgb */ color: rgb(100, 125, 188);
/* oklch */ color: oklch(59.7% 0.101 266.9);

Tailwind

colors: {
  custom: {
    50: '#94a2d0',
    500: '#647dbc',
    950: '#000000',
  },
}

SCSS

$custom: #647dbc;
$custom-light: #94a2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#647dbc",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 222.955,
    "s": 39.64,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59722,
    "c": 0.10104,
    "h": 266.9
  },
  "luminance": 0.21007
}

Semantic roles & 50–950 ramp

primary

#647DBC

secondary

#D0C6AC

accent

#AE58D0

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #647DBC

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

Preview Lab → · Contrast checker → · Palette generator →