#63B8EA#63B8EA

#63B8EA is a light, moderate cyan. Relative luminance 0.429; OKLCH L 74.9% C 0.110 H 236.6°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#63B8EA
RGB	rgb(99, 184, 234)
HSL	hsl(202, 76%, 65%)
HSV	hsv(202, 58%, 92%)
CMYK	cmyk(57.7%, 21.4%, 0%, 8.2%)
CIE-LAB	lab(71.47, -11.50, -32.73)
CIE-LCH	lch(71.47, 34.69, 250.64°)
OKLab	oklab(74.9% -0.0604 -0.0915)
OKLCH	oklch(74.9% 0.11 236.6)
XYZ	xyz(37.1318, 42.8707, 84.1440)
Luminance	0.4287 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8EA #EA9563

analogous

#63EAD8 #63B8EA #6375EA

triadic

#63B8EA #EA63B8 #B8EA63

tetradic

#63B8EA #D863EA #EA9563 #75EA63

square

#63B8EA #D863EA #EA9563 #75EA63

split-complementary

#63B8EA #EA6375 #EAD863

monochromatic

#197EBA #2D9FE3 #63B8EA #99D1F1 #CFE9F9

Accessibility & contrast

On white

2.19

#63B8EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.57

#63B8EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8EA

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8EA	#FFFFFF	#000000	##000000
##63B8EA	1.00	2.19	9.57	9.57
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.57	21.00	1.00	1.00
##000000	9.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B7EC

Deuteranopia (green-blind)

#8EA9E9

Tritanopia (blue-blind)

#00C5C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63b8ea;
/* rgb */ color: rgb(99, 184, 234);
/* oklch */ color: oklch(74.9% 0.110 236.6);

Tailwind

colors: {
  custom: {
    50: '#9acdf1',
    500: '#63b8ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b8ea;
$custom-light: #9acdf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8ea",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 234
  },
  "hsl": {
    "h": 202.222,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74899,
    "c": 0.10966,
    "h": 236.6
  },
  "luminance": 0.42874
}

Semantic roles & 50–950 ramp

primary

#63B8EA

secondary

#EBCFBE

accent

#580DD8

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B8EA

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

Preview Lab → · Contrast checker → · Palette generator →