#646880#646880

#646880 is a mid, muted blue. Relative luminance 0.142; OKLCH L 52.3% C 0.038 H 277.6°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#646880
RGB	rgb(100, 104, 128)
HSL	hsl(231, 12%, 45%)
HSV	hsv(231, 22%, 50%)
CMYK	cmyk(21.9%, 18.8%, 0%, 49.8%)
CIE-LAB	lab(44.47, 4.03, -13.82)
CIE-LCH	lch(44.47, 14.40, 286.27°)
OKLab	oklab(52.28% 0.005 -0.0377)
OKLCH	oklch(52.28% 0.038 277.6)
XYZ	xyz(14.1012, 14.1682, 22.4097)
Luminance	0.1417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646880 #807C64

analogous

#647680 #646880 #6E6480

triadic

#646880 #806468 #688064

tetradic

#646880 #806476 #807C64 #64806E

square

#646880 #806476 #807C64 #64806E

split-complementary

#646880 #806E64 #768064

monochromatic

#2E303B #494C5E #646880 #83879E #A5A8B9

Accessibility & contrast

On white

5.48

#646880 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#646880 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646880

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646880	#FFFFFF	#000000	##FFFFFF
##646880	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#626A81

Deuteranopia (green-blind)

#60687F

Tritanopia (blue-blind)

#5E6C70

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646880;
/* rgb */ color: rgb(100, 104, 128);
/* oklch */ color: oklch(52.3% 0.038 277.6);

Tailwind

colors: {
  custom: {
    50: '#9093a4',
    500: '#646880',
    950: '#000000',
  },
}

SCSS

$custom: #646880;
$custom-light: #9093a4;
$custom-dark: #000000;

JSON

{
  "hex": "#646880",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 128
  },
  "hsl": {
    "h": 231.429,
    "s": 12.281,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52277,
    "c": 0.03807,
    "h": 277.6
  },
  "luminance": 0.14168
}

Semantic roles & 50–950 ramp

primary

#646880

secondary

#A8A698

accent

#AC73B5

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0C0D0F

muted

#7D7E7F

Preview Lab

Preview with #646880

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

Preview Lab → · Contrast checker → · Palette generator →