#646E97#646E97

#646E97 is a mid, moderate blue. Relative luminance 0.161; OKLCH L 54.6% C 0.065 H 273.5°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#646E97
RGB	rgb(100, 110, 151)
HSL	hsl(228, 20%, 49%)
HSV	hsv(228, 34%, 59%)
CMYK	cmyk(33.8%, 27.2%, 0%, 40.8%)
CIE-LAB	lab(47.10, 6.47, -23.50)
CIE-LCH	lch(47.10, 24.38, 285.39°)
OKLab	oklab(54.63% 0.004 -0.0652)
OKLCH	oklch(54.63% 0.065 273.5)
XYZ	xyz(16.4158, 16.0950, 31.5139)
Luminance	0.1610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E97 #978D64

analogous

#648897 #646E97 #746497

triadic

#646E97 #97646E #6E9764

tetradic

#646E97 #976488 #978D64 #649774

square

#646E97 #976488 #978D64 #649774

split-complementary

#646E97 #977464 #889764

monochromatic

#33384D #4C5372 #646E97 #8890B0 #ADB2C9

Accessibility & contrast

On white

4.98

#646E97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#646E97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E97

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E97	#FFFFFF	#000000	##FFFFFF
##646E97	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617299

Deuteranopia (green-blind)

#5D6E96

Tritanopia (blue-blind)

#56767C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #646e97;
/* rgb */ color: rgb(100, 110, 151);
/* oklch */ color: oklch(54.6% 0.065 273.5);

Tailwind

colors: {
  custom: {
    50: '#9197b5',
    500: '#646e97',
    950: '#000000',
  },
}

SCSS

$custom: #646e97;
$custom-light: #9197b5;
$custom-dark: #000000;

JSON

{
  "hex": "#646e97",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 151
  },
  "hsl": {
    "h": 228.235,
    "s": 20.319,
    "l": 49.216
  },
  "oklch": {
    "l": 0.54626,
    "c": 0.06529,
    "h": 273.5
  },
  "luminance": 0.16096
}

Semantic roles & 50–950 ramp

primary

#646E97

secondary

#B7B3A0

accent

#AD6BBD

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0D11

muted

#7E7E80

Preview Lab

Preview with #646E97

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

Preview Lab → · Contrast checker → · Palette generator →