#646687#646687

#646687 is a mid, muted blue. Relative luminance 0.140; OKLCH L 52.1% C 0.052 H 281.7°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#646687
RGB	rgb(100, 102, 135)
HSL	hsl(237, 15%, 46%)
HSV	hsv(237, 26%, 53%)
CMYK	cmyk(25.9%, 24.4%, 0%, 47.1%)
CIE-LAB	lab(44.18, 7.04, -18.48)
CIE-LCH	lch(44.18, 19.77, 290.85°)
OKLab	oklab(52.14% 0.0106 -0.0508)
OKLCH	oklch(52.14% 0.052 281.7)
XYZ	xyz(14.3790, 13.9610, 24.8541)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646687 #878564

analogous

#647787 #646687 #736487

triadic

#646687 #876466 #668764

tetradic

#646687 #876477 #878564 #648773

square

#646687 #876477 #878564 #648773

split-complementary

#646687 #877364 #778764

monochromatic

#303141 #4A4B64 #646687 #8486A4 #A7A9BE

Accessibility & contrast

On white

5.54

#646687 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#646687 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646687

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646687	#FFFFFF	#000000	##FFFFFF
##646687	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D6A88

Deuteranopia (green-blind)

#5C6786

Tritanopia (blue-blind)

#5C6C71

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646687;
/* rgb */ color: rgb(100, 102, 135);
/* oklch */ color: oklch(52.1% 0.052 281.7);

Tailwind

colors: {
  custom: {
    50: '#9191aa',
    500: '#646687',
    950: '#000000',
  },
}

SCSS

$custom: #646687;
$custom-light: #9191aa;
$custom-dark: #000000;

JSON

{
  "hex": "#646687",
  "rgb": {
    "r": 100,
    "g": 102,
    "b": 135
  },
  "hsl": {
    "h": 236.571,
    "s": 14.894,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52137,
    "c": 0.05192,
    "h": 281.7
  },
  "luminance": 0.13961
}

Semantic roles & 50–950 ramp

primary

#646687

secondary

#ADAC9A

accent

#B470B8

background

#F8F8FA

surface

#F0F0F4

border

#CBCBCE

text

#0C0C10

muted

#7D7D7F

Preview Lab

Preview with #646687

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

Preview Lab → · Contrast checker → · Palette generator →