#646A84#646A84

#646A84 is a mid, muted blue. Relative luminance 0.147; OKLCH L 52.9% C 0.042 H 274.7°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#646A84
RGB	rgb(100, 106, 132)
HSL	hsl(229, 14%, 45%)
HSV	hsv(229, 24%, 52%)
CMYK	cmyk(24.2%, 19.7%, 0%, 48.2%)
CIE-LAB	lab(45.20, 3.84, -15.12)
CIE-LCH	lch(45.20, 15.60, 284.23°)
OKLab	oklab(52.89% 0.0034 -0.0414)
OKLCH	oklch(52.89% 0.042 274.7)
XYZ	xyz(14.5734, 14.6830, 23.8916)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A84 #847E64

analogous

#647A84 #646A84 #6E6484

triadic

#646A84 #84646A #6A8464

tetradic

#646A84 #84647A #847E64 #64846E

square

#646A84 #84647A #847E64 #64846E

split-complementary

#646A84 #846E64 #7A8464

monochromatic

#2F323E #4A4E61 #646A84 #8489A2 #A6AABC

Accessibility & contrast

On white

5.33

#646A84 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#646A84 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A84

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A84	#FFFFFF	#000000	##FFFFFF
##646A84	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#636C85

Deuteranopia (green-blind)

#616A83

Tritanopia (blue-blind)

#5C6F73

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #646a84;
/* rgb */ color: rgb(100, 106, 132);
/* oklch */ color: oklch(52.9% 0.042 274.7);

Tailwind

colors: {
  custom: {
    50: '#9094a7',
    500: '#646a84',
    950: '#000000',
  },
}

SCSS

$custom: #646a84;
$custom-light: #9094a7;
$custom-dark: #000000;

JSON

{
  "hex": "#646a84",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 132
  },
  "hsl": {
    "h": 228.75,
    "s": 13.793,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52892,
    "c": 0.04154,
    "h": 274.7
  },
  "luminance": 0.14683
}

Semantic roles & 50–950 ramp

primary

#646A84

secondary

#ABA899

accent

#AA71B7

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0C0D0F

muted

#7D7E7F

Preview Lab

Preview with #646A84

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

Preview Lab → · Contrast checker → · Palette generator →