#63BBEB#63BBEB

#63BBEB is a light, moderate cyan. Relative luminance 0.442; OKLCH L 75.6% C 0.109 H 234.6°. Best body text is #000000 at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#63BBEB
RGB	rgb(99, 187, 235)
HSL	hsl(201, 77%, 65%)
HSV	hsv(201, 58%, 92%)
CMYK	cmyk(57.9%, 20.4%, 0%, 7.8%)
CIE-LAB	lab(72.35, -12.80, -31.90)
CIE-LCH	lch(72.35, 34.37, 248.14°)
OKLab	oklab(75.62% -0.0633 -0.0891)
OKLCH	oklch(75.62% 0.109 234.6)
XYZ	xyz(37.9056, 44.1879, 85.1127)
Luminance	0.4419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBEB #EB9363

analogous

#63EBD7 #63BBEB #6377EB

triadic

#63BBEB #EB63BB #BBEB63

tetradic

#63BBEB #D763EB #EB9363 #77EB63

square

#63BBEB #D763EB #EB9363 #77EB63

split-complementary

#63BBEB #EB6377 #EBD763

monochromatic

#1882BC #2DA3E4 #63BBEB #99D3F2 #CFEAF9

Accessibility & contrast

On white

2.13

#63BBEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.84

#63BBEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBEB

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBEB	#FFFFFF	#000000	##000000
##63BBEB	1.00	2.13	9.84	9.84
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.84	21.00	1.00	1.00
##000000	9.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B9ED

Deuteranopia (green-blind)

#91ABEA

Tritanopia (blue-blind)

#00C8CB

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bbeb;
/* rgb */ color: rgb(99, 187, 235);
/* oklch */ color: oklch(75.6% 0.109 234.6);

Tailwind

colors: {
  custom: {
    50: '#9acff1',
    500: '#63bbeb',
    950: '#000000',
  },
}

SCSS

$custom: #63bbeb;
$custom-light: #9acff1;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbeb",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 235
  },
  "hsl": {
    "h": 201.176,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.75616,
    "c": 0.10932,
    "h": 234.6
  },
  "luminance": 0.44191
}

Semantic roles & 50–950 ramp

primary

#63BBEB

secondary

#ECCEBE

accent

#550CDA

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63BBEB

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

Preview Lab → · Contrast checker → · Palette generator →