#63BDE1#63BDE1

#63BDE1 is a light, moderate cyan. Relative luminance 0.445; OKLCH L 75.6% C 0.100 H 226.5°. Best body text is #000000 at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#63BDE1
RGB	rgb(99, 189, 225)
HSL	hsl(197, 68%, 64%)
HSV	hsv(197, 56%, 88%)
CMYK	cmyk(56%, 16%, 0%, 11.8%)
CIE-LAB	lab(72.55, -16.83, -26.18)
CIE-LCH	lch(72.55, 31.12, 237.26°)
OKLab	oklab(75.65% -0.069 -0.0728)
OKLCH	oklch(75.65% 0.1 226.5)
XYZ	xyz(36.9286, 44.4807, 77.8591)
Luminance	0.4448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BDE1 #E18763

analogous

#63E1C6 #63BDE1 #637EE1

triadic

#63BDE1 #E163BD #BDE163

tetradic

#63BDE1 #C663E1 #E18763 #7EE163

square

#63BDE1 #C663E1 #E18763 #7EE163

split-complementary

#63BDE1 #E1637E #E1C663

monochromatic

#2182A9 #30A7D7 #63BDE1 #96D3EB #CAE8F5

Accessibility & contrast

On white

2.12

#63BDE1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.90

#63BDE1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BDE1

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BDE1	#FFFFFF	#000000	##000000
##63BDE1	1.00	2.12	9.90	9.90
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.90	21.00	1.00	1.00
##000000	9.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABAE3

Deuteranopia (green-blind)

#98ACE1

Tritanopia (blue-blind)

#00C8C9

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bde1;
/* rgb */ color: rgb(99, 189, 225);
/* oklch */ color: oklch(75.6% 0.100 226.5);

Tailwind

colors: {
  custom: {
    50: '#99d1ea',
    500: '#63bde1',
    950: '#000000',
  },
}

SCSS

$custom: #63bde1;
$custom-light: #99d1ea;
$custom-dark: #000000;

JSON

{
  "hex": "#63bde1",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 225
  },
  "hsl": {
    "h": 197.143,
    "s": 67.742,
    "l": 63.529
  },
  "oklch": {
    "l": 0.75647,
    "c": 0.1003,
    "h": 226.5
  },
  "luminance": 0.44484
}

Semantic roles & 50–950 ramp

primary

#63BDE1

secondary

#E6C6BA

accent

#4B16D0

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BDE1

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

Preview Lab → · Contrast checker → · Palette generator →