#63B9EA#63B9EA

#63B9EA is a light, moderate cyan. Relative luminance 0.433; OKLCH L 75.1% C 0.109 H 235.7°. Best body text is #000000 at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#63B9EA
RGB	rgb(99, 185, 234)
HSL	hsl(202, 76%, 65%)
HSV	hsv(202, 58%, 92%)
CMYK	cmyk(57.7%, 20.9%, 0%, 8.2%)
CIE-LAB	lab(71.75, -12.03, -32.29)
CIE-LCH	lch(71.75, 34.46, 249.56°)
OKLab	oklab(75.12% -0.0615 -0.0903)
OKLCH	oklch(75.12% 0.109 235.7)
XYZ	xyz(37.3402, 43.2876, 84.2135)
Luminance	0.4329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B9EA #EA9463

analogous

#63EAD8 #63B9EA #6375EA

triadic

#63B9EA #EA63B9 #B9EA63

tetradic

#63B9EA #D863EA #EA9463 #75EA63

square

#63B9EA #D863EA #EA9463 #75EA63

split-complementary

#63B9EA #EA6375 #EAD863

monochromatic

#197FBA #2DA1E3 #63B9EA #99D1F1 #CFE9F9

Accessibility & contrast

On white

2.17

#63B9EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.66

#63B9EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B9EA

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B9EA	#FFFFFF	#000000	##000000
##63B9EA	1.00	2.17	9.66	9.66
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.66	21.00	1.00	1.00
##000000	9.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B8EC

Deuteranopia (green-blind)

#8FAAE9

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63b9ea;
/* rgb */ color: rgb(99, 185, 234);
/* oklch */ color: oklch(75.1% 0.109 235.7);

Tailwind

colors: {
  custom: {
    50: '#9acef1',
    500: '#63b9ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b9ea;
$custom-light: #9acef1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b9ea",
  "rgb": {
    "r": 99,
    "g": 185,
    "b": 234
  },
  "hsl": {
    "h": 201.778,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.75123,
    "c": 0.10922,
    "h": 235.7
  },
  "luminance": 0.43291
}

Semantic roles & 50–950 ramp

primary

#63B9EA

secondary

#EBCEBE

accent

#570DD8

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B9EA

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

Preview Lab → · Contrast checker → · Palette generator →