#63BDE3#63BDE3

#63BDE3 is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.7% C 0.102 H 227.9°. Best body text is #000000 at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#63BDE3
RGB	rgb(99, 189, 227)
HSL	hsl(198, 70%, 64%)
HSV	hsv(198, 56%, 89%)
CMYK	cmyk(56.4%, 16.7%, 0%, 11%)
CIE-LAB	lab(72.62, -16.24, -27.15)
CIE-LCH	lch(72.62, 31.64, 239.12°)
OKLab	oklab(75.73% -0.0683 -0.0756)
OKLCH	oklch(75.73% 0.102 227.9)
XYZ	xyz(37.2030, 44.5904, 79.3044)
Luminance	0.4459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BDE3 #E38963

analogous

#63E3C9 #63BDE3 #637DE3

triadic

#63BDE3 #E363BD #BDE363

tetradic

#63BDE3 #C963E3 #E38963 #7DE363

square

#63BDE3 #C963E3 #E38963 #7DE363

split-complementary

#63BDE3 #E3637D #E3C963

monochromatic

#1F83AD #2FA7DA #63BDE3 #97D3EC #CBE9F6

Accessibility & contrast

On white

2.12

#63BDE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.92

#63BDE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BDE3

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BDE3	#FFFFFF	#000000	##000000
##63BDE3	1.00	2.12	9.92	9.92
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.92	21.00	1.00	1.00
##000000	9.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BAE5

Deuteranopia (green-blind)

#97ACE3

Tritanopia (blue-blind)

#00C8C9

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bde3;
/* rgb */ color: rgb(99, 189, 227);
/* oklch */ color: oklch(75.7% 0.102 227.9);

Tailwind

colors: {
  custom: {
    50: '#99d1ec',
    500: '#63bde3',
    950: '#000000',
  },
}

SCSS

$custom: #63bde3;
$custom-light: #99d1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63bde3",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 227
  },
  "hsl": {
    "h": 197.813,
    "s": 69.565,
    "l": 63.922
  },
  "oklch": {
    "l": 0.75729,
    "c": 0.10184,
    "h": 227.9
  },
  "luminance": 0.44594
}

Semantic roles & 50–950 ramp

primary

#63BDE3

secondary

#E7C8BA

accent

#4C14D2

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BDE3

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

Preview Lab → · Contrast checker → · Palette generator →