#646878#646878

#646878 is a mid, muted blue. Relative luminance 0.140; OKLCH L 52.0% C 0.026 H 274.4°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#646878
RGB	rgb(100, 104, 120)
HSL	hsl(228, 9%, 43%)
HSV	hsv(228, 17%, 47%)
CMYK	cmyk(16.7%, 13.3%, 0%, 52.9%)
CIE-LAB	lab(44.18, 2.08, -9.44)
CIE-LCH	lch(44.18, 9.66, 282.40°)
OKLab	oklab(51.96% 0.002 -0.0256)
OKLCH	oklch(51.96% 0.026 274.4)
XYZ	xyz(13.5952, 13.9658, 19.7451)
Luminance	0.1397 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646878 #787464

analogous

#647278 #646878 #6A6478

triadic

#646878 #786468 #687864

tetradic

#646878 #786472 #787464 #64786A

square

#646878 #786472 #787464 #64786A

split-complementary

#646878 #786A64 #727864

monochromatic

#2C2E35 #484B57 #646878 #828697 #A4A7B3

Accessibility & contrast

On white

5.54

#646878 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#646878 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646878

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646878	#FFFFFF	#000000	##FFFFFF
##646878	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)

#646979

Deuteranopia (green-blind)

#626878

Tritanopia (blue-blind)

#606B6D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646878;
/* rgb */ color: rgb(100, 104, 120);
/* oklch */ color: oklch(52.0% 0.026 274.4);

Tailwind

colors: {
  custom: {
    50: '#90939f',
    500: '#646878',
    950: '#000000',
  },
}

SCSS

$custom: #646878;
$custom-light: #90939f;
$custom-dark: #000000;

JSON

{
  "hex": "#646878",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 120
  },
  "hsl": {
    "h": 228,
    "s": 9.091,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51956,
    "c": 0.02565,
    "h": 274.4
  },
  "luminance": 0.13966
}

Semantic roles & 50–950 ramp

primary

#646878

secondary

#A2A096

accent

#A676B2

background

#F8F9F9

surface

#F0F1F2

border

#CBCBCC

text

#0C0D0E

muted

#7D7E7E

Preview Lab

Preview with #646878

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

Preview Lab → · Contrast checker → · Palette generator →