#63B4CF#63B4CF

#63B4CF is a light, moderate cyan. Relative luminance 0.398; OKLCH L 72.9% C 0.088 H 221.9°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#63B4CF
RGB	rgb(99, 180, 207)
HSL	hsl(195, 53%, 60%)
HSV	hsv(195, 52%, 81%)
CMYK	cmyk(52.2%, 13%, 0%, 18.8%)
CIE-LAB	lab(69.32, -17.34, -21.27)
CIE-LCH	lch(69.32, 27.44, 230.82°)
OKLab	oklab(72.86% -0.0657 -0.0589)
OKLCH	oklch(72.86% 0.088 221.9)
XYZ	xyz(32.7250, 39.7973, 64.9765)
Luminance	0.3980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4CF #CF7E63

analogous

#63CFB4 #63B4CF #637ECF

triadic

#63B4CF #CF63B4 #B4CF63

tetradic

#63B4CF #B463CF #CF7E63 #7ECF63

square

#63B4CF #B463CF #CF7E63 #7ECF63

split-complementary

#63B4CF #CF637E #CFB463

monochromatic

#2B748C #3A9BBB #63B4CF #92CADD #C1E1EC

Accessibility & contrast

On white

2.34

#63B4CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#63B4CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4CF

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4CF	#FFFFFF	#000000	##000000
##63B4CF	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B0D0

Deuteranopia (green-blind)

#94A4CF

Tritanopia (blue-blind)

#1ABDBC

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b4cf;
/* rgb */ color: rgb(99, 180, 207);
/* oklch */ color: oklch(72.9% 0.088 221.9);

Tailwind

colors: {
  custom: {
    50: '#97cadd',
    500: '#63b4cf',
    950: '#000000',
  },
}

SCSS

$custom: #63b4cf;
$custom-light: #97cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4cf",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 207
  },
  "hsl": {
    "h": 195,
    "s": 52.941,
    "l": 60
  },
  "oklch": {
    "l": 0.72863,
    "c": 0.08828,
    "h": 221.9
  },
  "luminance": 0.398
}

Semantic roles & 50–950 ramp

primary

#63B4CF

secondary

#DCBDB2

accent

#704BDC

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B4CF

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

Preview Lab → · Contrast checker → · Palette generator →