#63D4EB#63D4EB

#63D4EB is a light, moderate cyan. Relative luminance 0.557; OKLCH L 81.3% C 0.107 H 213.0°. Best body text is #000000 at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#63D4EB
RGB	rgb(99, 212, 235)
HSL	hsl(190, 77%, 65%)
HSV	hsv(190, 58%, 92%)
CMYK	cmyk(57.9%, 9.8%, 0%, 7.8%)
CIE-LAB	lab(79.46, -25.63, -21.02)
CIE-LCH	lch(79.46, 33.15, 219.36°)
OKLab	oklab(81.29% -0.0898 -0.0583)
OKLCH	oklch(81.29% 0.107 213)
XYZ	xyz(43.6784, 55.7335, 87.0369)
Luminance	0.5574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D4EB #EB7A63

analogous

#63EBBE #63D4EB #6390EB

triadic

#63D4EB #EB63D4 #D4EB63

tetradic

#63D4EB #BE63EB #EB7A63 #90EB63

square

#63D4EB #BE63EB #EB7A63 #90EB63

split-complementary

#63D4EB #EB6390 #EBBE63

monochromatic

#18A0BC #2DC5E4 #63D4EB #99E3F2 #CFF2F9

Accessibility & contrast

On white

1.73

#63D4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.15

#63D4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D4EB

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D4EB	#FFFFFF	#000000	##000000
##63D4EB	1.00	1.73	12.15	12.15
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.15	21.00	1.00	1.00
##000000	12.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CEEC

Deuteranopia (green-blind)

#AEBEEB

Tritanopia (blue-blind)

#00DDDB

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #63d4eb;
/* rgb */ color: rgb(99, 212, 235);
/* oklch */ color: oklch(81.3% 0.107 213.0);

Tailwind

colors: {
  custom: {
    50: '#9be1f1',
    500: '#63d4eb',
    950: '#000000',
  },
}

SCSS

$custom: #63d4eb;
$custom-light: #9be1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63d4eb",
  "rgb": {
    "r": 99,
    "g": 212,
    "b": 235
  },
  "hsl": {
    "h": 190.147,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.81293,
    "c": 0.10705,
    "h": 213
  },
  "luminance": 0.55738
}

Semantic roles & 50–950 ramp

primary

#63D4EB

secondary

#BB4E38

accent

#2F0CDA

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63D4EB

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

Preview Lab → · Contrast checker → · Palette generator →