#647AA4#647AA4

#647AA4 is a mid, moderate blue. Relative luminance 0.193; OKLCH L 57.9% C 0.070 H 263.0°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#647AA4
RGB	rgb(100, 122, 164)
HSL	hsl(219, 26%, 52%)
HSV	hsv(219, 39%, 64%)
CMYK	cmyk(39%, 25.6%, 0%, 35.7%)
CIE-LAB	lab(51.05, 2.92, -25.02)
CIE-LCH	lch(51.05, 25.19, 276.66°)
OKLab	oklab(57.88% -0.0086 -0.0695)
OKLCH	oklch(57.88% 0.07 263)
XYZ	xyz(18.9138, 19.3078, 37.8449)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647AA4 #A48E64

analogous

#649AA4 #647AA4 #6E64A4

triadic

#647AA4 #A4647A #7AA464

tetradic

#647AA4 #A4649A #A48E64 #64A46E

square

#647AA4 #A4649A #A48E64 #64A46E

split-complementary

#647AA4 #A46E64 #9AA464

monochromatic

#344159 #4B5D80 #647AA4 #8B9BBB #B1BCD1

Accessibility & contrast

On white

4.32

#647AA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#647AA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647AA4

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647AA4	#FFFFFF	#000000	##000000
##647AA4	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA6

Deuteranopia (green-blind)

#6577A3

Tritanopia (blue-blind)

#4F8388

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #647aa4;
/* rgb */ color: rgb(100, 122, 164);
/* oklch */ color: oklch(57.9% 0.070 263.0);

Tailwind

colors: {
  custom: {
    50: '#92a0bf',
    500: '#647aa4',
    950: '#000000',
  },
}

SCSS

$custom: #647aa4;
$custom-light: #92a0bf;
$custom-dark: #000000;

JSON

{
  "hex": "#647aa4",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 164
  },
  "hsl": {
    "h": 219.375,
    "s": 26.016,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57882,
    "c": 0.07007,
    "h": 263
  },
  "luminance": 0.19309
}

Semantic roles & 50–950 ramp

primary

#647AA4

secondary

#C0B6A4

accent

#A265C2

background

#F9F9FB

surface

#F1F2F7

border

#CBCCD0

text

#0D0E12

muted

#7E7E81

Preview Lab

Preview with #647AA4

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

Preview Lab → · Contrast checker → · Palette generator →