#647DAF#647DAF

#647DAF is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.1% C 0.082 H 263.6°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#647DAF
RGB	rgb(100, 125, 175)
HSL	hsl(220, 32%, 54%)
HSV	hsv(220, 43%, 69%)
CMYK	cmyk(42.9%, 28.6%, 0%, 31.4%)
CIE-LAB	lab(52.37, 4.32, -29.35)
CIE-LCH	lch(52.37, 29.67, 278.37°)
OKLab	oklab(59.07% -0.0091 -0.0819)
OKLCH	oklch(59.07% 0.082 263.6)
XYZ	xyz(20.3246, 20.4706, 43.4294)
Luminance	0.2047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647DAF #AF9664

analogous

#64A3AF #647DAF #7164AF

triadic

#647DAF #AF647D #7DAF64

tetradic

#647DAF #AF64A3 #AF9664 #64AF71

square

#647DAF #AF64A3 #AF9664 #64AF71

split-complementary

#647DAF #AF7164 #A3AF64

monochromatic

#344465 #49608D #647DAF #8C9FC4 #B5C1D9

Accessibility & contrast

On white

4.12

#647DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#647DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647DAF

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647DAF	#FFFFFF	#000000	##000000
##647DAF	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B81B1

Deuteranopia (green-blind)

#637AAE

Tritanopia (blue-blind)

#4A878F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #647daf;
/* rgb */ color: rgb(100, 125, 175);
/* oklch */ color: oklch(59.1% 0.082 263.6);

Tailwind

colors: {
  custom: {
    50: '#93a2c7',
    500: '#647daf',
    950: '#000000',
  },
}

SCSS

$custom: #647daf;
$custom-light: #93a2c7;
$custom-dark: #000000;

JSON

{
  "hex": "#647daf",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 175
  },
  "hsl": {
    "h": 220,
    "s": 31.915,
    "l": 53.922
  },
  "oklch": {
    "l": 0.59068,
    "c": 0.08246,
    "h": 263.6
  },
  "luminance": 0.20472
}

Semantic roles & 50–950 ramp

primary

#647DAF

secondary

#C7BDA7

accent

#A560C8

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #647DAF

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

Preview Lab → · Contrast checker → · Palette generator →