#63ADDF#63ADDF

#63ADDF is a light, moderate cyan. Relative luminance 0.379; OKLCH L 71.9% C 0.104 H 239.9°. Best body text is #000000 at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#63ADDF
RGB	rgb(99, 173, 223)
HSL	hsl(204, 66%, 63%)
HSV	hsv(204, 56%, 87%)
CMYK	cmyk(55.6%, 22.4%, 0%, 12.5%)
CIE-LAB	lab(67.92, -8.88, -32.21)
CIE-LCH	lch(67.92, 33.41, 254.59°)
OKLab	oklab(71.95% -0.0521 -0.0901)
OKLCH	oklch(71.95% 0.104 239.9)
XYZ	xyz(33.4035, 37.8646, 75.3460)
Luminance	0.3787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ADDF #DF9563

analogous

#63DFD3 #63ADDF #636FDF

triadic

#63ADDF #DF63AD #ADDF63

tetradic

#63ADDF #D363DF #DF9563 #6FDF63

square

#63ADDF #D363DF #DF9563 #6FDF63

split-complementary

#63ADDF #DF636F #DFD363

monochromatic

#2271A6 #3092D5 #63ADDF #96C8E9 #C9E2F4

Accessibility & contrast

On white

2.45

#63ADDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.57

#63ADDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ADDF

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ADDF	#FFFFFF	#000000	##000000
##63ADDF	1.00	2.45	8.57	8.57
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.57	21.00	1.00	1.00
##000000	8.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97ADE1

Deuteranopia (green-blind)

#86A0DE

Tritanopia (blue-blind)

#00BABE

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #63addf;
/* rgb */ color: rgb(99, 173, 223);
/* oklch */ color: oklch(71.9% 0.104 239.9);

Tailwind

colors: {
  custom: {
    50: '#98c5e9',
    500: '#63addf',
    950: '#000000',
  },
}

SCSS

$custom: #63addf;
$custom-light: #98c5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63addf",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 223
  },
  "hsl": {
    "h": 204.194,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.71945,
    "c": 0.10407,
    "h": 239.9
  },
  "luminance": 0.37868
}

Semantic roles & 50–950 ramp

primary

#63ADDF

secondary

#E5CBB9

accent

#6118CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #63ADDF

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

Preview Lab → · Contrast checker → · Palette generator →