#63B3CD#63B3CD

#63B3CD is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.6% C 0.087 H 221.3°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#63B3CD
RGB	rgb(99, 179, 205)
HSL	hsl(195, 51%, 60%)
HSV	hsv(195, 52%, 80%)
CMYK	cmyk(51.7%, 12.7%, 0%, 19.6%)
CIE-LAB	lab(68.97, -17.38, -20.72)
CIE-LCH	lch(68.97, 27.04, 230.00°)
OKLab	oklab(72.55% -0.0653 -0.0574)
OKLCH	oklch(72.55% 0.087 221.3)
XYZ	xyz(32.2809, 39.2979, 63.6299)
Luminance	0.3930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3CD #CD7D63

analogous

#63CDB2 #63B3CD #637ECD

triadic

#63B3CD #CD63B3 #B3CD63

tetradic

#63B3CD #B263CD #CD7D63 #7ECD63

square

#63B3CD #B263CD #CD7D63 #7ECD63

split-complementary

#63B3CD #CD637E #CDB263

monochromatic

#2C738A #3B99B8 #63B3CD #91CADC #C0E0EB

Accessibility & contrast

On white

2.37

#63B3CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#63B3CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3CD

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3CD	#FFFFFF	#000000	##000000
##63B3CD	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AFCE

Deuteranopia (green-blind)

#94A3CD

Tritanopia (blue-blind)

#1EBCBB

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63b3cd;
/* rgb */ color: rgb(99, 179, 205);
/* oklch */ color: oklch(72.6% 0.087 221.3);

Tailwind

colors: {
  custom: {
    50: '#97c9dc',
    500: '#63b3cd',
    950: '#000000',
  },
}

SCSS

$custom: #63b3cd;
$custom-light: #97c9dc;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3cd",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 205
  },
  "hsl": {
    "h": 194.717,
    "s": 51.456,
    "l": 59.608
  },
  "oklch": {
    "l": 0.72554,
    "c": 0.08696,
    "h": 221.3
  },
  "luminance": 0.39301
}

Semantic roles & 50–950 ramp

primary

#63B3CD

secondary

#DABBB1

accent

#704DDB

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B3CD

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

Preview Lab → · Contrast checker → · Palette generator →