#646680#646680

#646680 is a mid, muted blue. Relative luminance 0.138; OKLCH L 51.8% C 0.041 H 281.4°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#646680
RGB	rgb(100, 102, 128)
HSL	hsl(236, 12%, 45%)
HSV	hsv(236, 22%, 50%)
CMYK	cmyk(21.9%, 20.3%, 0%, 49.8%)
CIE-LAB	lab(43.90, 5.25, -14.69)
CIE-LCH	lch(43.90, 15.60, 289.65°)
OKLab	oklab(51.83% 0.0081 -0.0402)
OKLCH	oklch(51.83% 0.041 281.4)
XYZ	xyz(13.9022, 13.7703, 22.3434)
Luminance	0.1377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646680 #807E64

analogous

#647480 #646680 #706480

triadic

#646680 #806466 #668064

tetradic

#646680 #806474 #807E64 #648070

square

#646680 #806474 #807E64 #648070

split-complementary

#646680 #807064 #748064

monochromatic

#2E2F3B #494B5E #646680 #83859E #A5A7B9

Accessibility & contrast

On white

5.59

#646680 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#646680 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646680

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646680	#FFFFFF	#000000	##FFFFFF
##646680	1.00	5.59	3.75	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6981

Deuteranopia (green-blind)

#5E677F

Tritanopia (blue-blind)

#5E6A6F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646680;
/* rgb */ color: rgb(100, 102, 128);
/* oklch */ color: oklch(51.8% 0.041 281.4);

Tailwind

colors: {
  custom: {
    50: '#9091a5',
    500: '#646680',
    950: '#000000',
  },
}

SCSS

$custom: #646680;
$custom-light: #9091a5;
$custom-dark: #000000;

JSON

{
  "hex": "#646680",
  "rgb": {
    "r": 100,
    "g": 102,
    "b": 128
  },
  "hsl": {
    "h": 235.714,
    "s": 12.281,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51832,
    "c": 0.04097,
    "h": 281.4
  },
  "luminance": 0.13771
}

Semantic roles & 50–950 ramp

primary

#646680

secondary

#A8A798

accent

#B073B5

background

#F8F8FA

surface

#F0F0F4

border

#CBCBCE

text

#0C0C0F

muted

#7D7D7F

Preview Lab

Preview with #646680

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

Preview Lab → · Contrast checker → · Palette generator →