#647EAF#647EAF

#647EAF is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.3% C 0.081 H 262.6°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#647EAF
RGB	rgb(100, 126, 175)
HSL	hsl(219, 32%, 54%)
HSV	hsv(219, 43%, 69%)
CMYK	cmyk(42.9%, 28%, 0%, 31.4%)
CIE-LAB	lab(52.65, 3.72, -28.91)
CIE-LCH	lch(52.65, 29.15, 277.34°)
OKLab	oklab(59.29% -0.0104 -0.0807)
OKLCH	oklch(59.29% 0.081 262.6)
XYZ	xyz(20.4518, 20.7250, 43.4718)
Luminance	0.2073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647EAF #AF9564

analogous

#64A4AF #647EAF #7064AF

triadic

#647EAF #AF647E #7EAF64

tetradic

#647EAF #AF64A4 #AF9564 #64AF70

square

#647EAF #AF64A4 #AF9564 #64AF70

split-complementary

#647EAF #AF7064 #A4AF64

monochromatic

#344565 #49608D #647EAF #8CA0C4 #B5C1D9

Accessibility & contrast

On white

4.08

#647EAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#647EAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647EAF

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647EAF	#FFFFFF	#000000	##000000
##647EAF	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)

#6C81B1

Deuteranopia (green-blind)

#647AAE

Tritanopia (blue-blind)

#49888F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #647eaf;
/* rgb */ color: rgb(100, 126, 175);
/* oklch */ color: oklch(59.3% 0.081 262.6);

Tailwind

colors: {
  custom: {
    50: '#93a3c7',
    500: '#647eaf',
    950: '#000000',
  },
}

SCSS

$custom: #647eaf;
$custom-light: #93a3c7;
$custom-dark: #000000;

JSON

{
  "hex": "#647eaf",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 175
  },
  "hsl": {
    "h": 219.2,
    "s": 31.915,
    "l": 53.922
  },
  "oklch": {
    "l": 0.59288,
    "c": 0.08136,
    "h": 262.6
  },
  "luminance": 0.20726
}

Semantic roles & 50–950 ramp

primary

#647EAF

secondary

#C7BCA7

accent

#A460C8

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #647EAF

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

Preview Lab → · Contrast checker → · Palette generator →