#63B8CC#63B8CC

#63B8CC is a light, moderate cyan. Relative luminance 0.413; OKLCH L 73.7% C 0.087 H 214.9°. Best body text is #000000 at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#63B8CC
RGB	rgb(99, 184, 204)
HSL	hsl(191, 51%, 59%)
HSV	hsv(191, 51%, 80%)
CMYK	cmyk(51.5%, 9.8%, 0%, 20%)
CIE-LAB	lab(70.38, -20.26, -18.02)
CIE-LCH	lch(70.38, 27.12, 221.66°)
OKLab	oklab(73.67% -0.0714 -0.0498)
OKLCH	oklch(73.67% 0.087 214.9)
XYZ	xyz(33.1809, 41.2904, 63.3363)
Luminance	0.4129 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8CC #CC7763

analogous

#63CCAC #63B8CC #6383CC

triadic

#63B8CC #CC63B8 #B8CC63

tetradic

#63B8CC #AC63CC #CC7763 #83CC63

square

#63B8CC #AC63CC #CC7763 #83CC63

split-complementary

#63B8CC #CC6383 #CCAC63

monochromatic

#2C7788 #3C9FB6 #63B8CC #91CDDB #BFE2EA

Accessibility & contrast

On white

2.27

#63B8CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.26

#63B8CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8CC

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8CC	#FFFFFF	#000000	##000000
##63B8CC	1.00	2.27	9.26	9.26
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.26	21.00	1.00	1.00
##000000	9.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB3CD

Deuteranopia (green-blind)

#99A7CC

Tritanopia (blue-blind)

#1CC0BE

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #63b8cc;
/* rgb */ color: rgb(99, 184, 204);
/* oklch */ color: oklch(73.7% 0.087 214.9);

Tailwind

colors: {
  custom: {
    50: '#97cddb',
    500: '#63b8cc',
    950: '#000000',
  },
}

SCSS

$custom: #63b8cc;
$custom-light: #97cddb;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8cc",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 204
  },
  "hsl": {
    "h": 191.429,
    "s": 50.725,
    "l": 59.412
  },
  "oklch": {
    "l": 0.73672,
    "c": 0.08708,
    "h": 214.9
  },
  "luminance": 0.41293
}

Semantic roles & 50–950 ramp

primary

#63B8CC

secondary

#DAB9B1

accent

#684EDA

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B8CC

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

Preview Lab → · Contrast checker → · Palette generator →