#63C5DD#63C5DD

#63C5DD is a light, moderate cyan. Relative luminance 0.478; OKLCH L 77.3% C 0.098 H 215.9°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#63C5DD
RGB	rgb(99, 197, 221)
HSL	hsl(192, 64%, 63%)
HSV	hsv(192, 55%, 87%)
CMYK	cmyk(55.2%, 10.9%, 0%, 13.3%)
CIE-LAB	lab(74.70, -22.10, -20.73)
CIE-LCH	lch(74.70, 30.30, 223.17°)
OKLab	oklab(77.32% -0.0792 -0.0574)
OKLCH	oklch(77.32% 0.098 215.9)
XYZ	xyz(38.1578, 47.8020, 75.6084)
Luminance	0.4781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5DD #DD7B63

analogous

#63DDB8 #63C5DD #6388DD

triadic

#63C5DD #DD63C5 #C5DD63

tetradic

#63C5DD #B863DD #DD7B63 #88DD63

square

#63C5DD #B863DD #DD7B63 #88DD63

split-complementary

#63C5DD #DD6388 #DDB863

monochromatic

#2389A2 #31B2D2 #63C5DD #95D8E8 #C7EAF3

Accessibility & contrast

On white

1.99

#63C5DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.56

#63C5DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5DD

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5DD	#FFFFFF	#000000	##000000
##63C5DD	1.00	1.99	10.56	10.56
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.56	21.00	1.00	1.00
##000000	10.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C0DE

Deuteranopia (green-blind)

#A2B2DD

Tritanopia (blue-blind)

#00CECC

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c5dd;
/* rgb */ color: rgb(99, 197, 221);
/* oklch */ color: oklch(77.3% 0.098 215.9);

Tailwind

colors: {
  custom: {
    50: '#99d6e7',
    500: '#63c5dd',
    950: '#000000',
  },
}

SCSS

$custom: #63c5dd;
$custom-light: #99d6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5dd",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 221
  },
  "hsl": {
    "h": 191.803,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.7732,
    "c": 0.09783,
    "h": 215.9
  },
  "luminance": 0.47806
}

Semantic roles & 50–950 ramp

primary

#63C5DD

secondary

#E4C1B8

accent

#3D19CC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #63C5DD

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

Preview Lab → · Contrast checker → · Palette generator →