#63687F#63687F

#63687F is a mid, muted blue. Relative luminance 0.141; OKLCH L 52.2% C 0.037 H 275.4°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#63687F
RGB	rgb(99, 104, 127)
HSL	hsl(229, 12%, 44%)
HSV	hsv(229, 22%, 50%)
CMYK	cmyk(22%, 18.1%, 0%, 50.2%)
CIE-LAB	lab(44.35, 3.44, -13.40)
CIE-LCH	lch(44.35, 13.84, 284.39°)
OKLab	oklab(52.15% 0.0035 -0.0366)
OKLCH	oklch(52.15% 0.037 275.4)
XYZ	xyz(13.9257, 14.0853, 22.0596)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63687F #7F7A63

analogous

#63767F #63687F #6C637F

triadic

#63687F #7F6368 #687F63

tetradic

#63687F #7F6376 #7F7A63 #637F6C

square

#63687F #7F6376 #7F7A63 #637F6C

split-complementary

#63687F #7F6C63 #767F63

monochromatic

#2D303A #484C5D #63687F #82879D #A4A8B8

Accessibility & contrast

On white

5.50

#63687F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#63687F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #63687F

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63687F	#FFFFFF	#000000	##FFFFFF
##63687F	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#626A80

Deuteranopia (green-blind)

#60687E

Tritanopia (blue-blind)

#5C6C70

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #63687f;
/* rgb */ color: rgb(99, 104, 127);
/* oklch */ color: oklch(52.2% 0.037 275.4);

Tailwind

colors: {
  custom: {
    50: '#8f93a4',
    500: '#63687f',
    950: '#000000',
  },
}

SCSS

$custom: #63687f;
$custom-light: #8f93a4;
$custom-dark: #000000;

JSON

{
  "hex": "#63687f",
  "rgb": {
    "r": 99,
    "g": 104,
    "b": 127
  },
  "hsl": {
    "h": 229.286,
    "s": 12.389,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52153,
    "c": 0.03677,
    "h": 275.4
  },
  "luminance": 0.14086
}

Semantic roles & 50–950 ramp

primary

#63687F

secondary

#A7A497

accent

#A973B5

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0C0D0F

muted

#7D7E7F

Preview Lab

Preview with #63687F

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

Preview Lab → · Contrast checker → · Palette generator →