#63758B#63758B

#63758B is a mid, muted cyan. Relative luminance 0.172; OKLCH L 55.6% C 0.040 H 253.6°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#63758B
RGB	rgb(99, 117, 139)
HSL	hsl(213, 17%, 47%)
HSV	hsv(213, 29%, 55%)
CMYK	cmyk(28.8%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(48.56, -1.25, -14.18)
CIE-LCH	lch(48.56, 14.24, 264.98°)
OKLab	oklab(55.59% -0.0114 -0.0388)
OKLCH	oklch(55.59% 0.04 253.6)
XYZ	xyz(16.1657, 17.2387, 26.8967)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63758B #8B7963

analogous

#63898B #63758B #65638B

triadic

#63758B #8B6375 #758B63

tetradic

#63758B #8B6389 #8B7963 #638B65

square

#63758B #8B6389 #8B7963 #638B65

split-complementary

#63758B #8B6563 #898B63

monochromatic

#303944 #4A5767 #63758B #8494A7 #A8B3C1

Accessibility & contrast

On white

4.72

#63758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#63758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #63758B

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63758B	#FFFFFF	#000000	##FFFFFF
##63758B	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D768C

Deuteranopia (green-blind)

#69728B

Tritanopia (blue-blind)

#587A7C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #63758b;
/* rgb */ color: rgb(99, 117, 139);
/* oklch */ color: oklch(55.6% 0.040 253.6);

Tailwind

colors: {
  custom: {
    50: '#909cad',
    500: '#63758b',
    950: '#000000',
  },
}

SCSS

$custom: #63758b;
$custom-light: #909cad;
$custom-dark: #000000;

JSON

{
  "hex": "#63758b",
  "rgb": {
    "r": 99,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 213,
    "s": 16.807,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55593,
    "c": 0.04048,
    "h": 253.6
  },
  "luminance": 0.17239
}

Semantic roles & 50–950 ramp

primary

#63758B

secondary

#B0A69A

accent

#986EBA

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #63758B

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

Preview Lab → · Contrast checker → · Palette generator →