#63BFE5#63BFE5

#63BFE5 is a light, moderate cyan. Relative luminance 0.456; OKLCH L 76.3% C 0.103 H 227.4°. Best body text is #000000 at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#63BFE5
RGB	rgb(99, 191, 229)
HSL	hsl(198, 71%, 64%)
HSV	hsv(198, 57%, 90%)
CMYK	cmyk(56.8%, 16.6%, 0%, 10.2%)
CIE-LAB	lab(73.26, -16.70, -27.25)
CIE-LCH	lch(73.26, 31.96, 238.50°)
OKLab	oklab(76.27% -0.0697 -0.0759)
OKLCH	oklch(76.27% 0.103 227.4)
XYZ	xyz(37.9138, 45.5679, 80.9110)
Luminance	0.4557 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BFE5 #E58963

analogous

#63E5CA #63BFE5 #637EE5

triadic

#63BFE5 #E563BF #BFE563

tetradic

#63BFE5 #CA63E5 #E58963 #7EE563

square

#63BFE5 #CA63E5 #E58963 #7EE563

split-complementary

#63BFE5 #E5637E #E5CA63

monochromatic

#1D85B0 #2FA9DC #63BFE5 #97D5EE #CCEAF6

Accessibility & contrast

On white

2.08

#63BFE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.11

#63BFE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BFE5

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BFE5	#FFFFFF	#000000	##000000
##63BFE5	1.00	2.08	10.11	10.11
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.11	21.00	1.00	1.00
##000000	10.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBCE7

Deuteranopia (green-blind)

#98AEE5

Tritanopia (blue-blind)

#00CACB

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #63bfe5;
/* rgb */ color: rgb(99, 191, 229);
/* oklch */ color: oklch(76.3% 0.103 227.4);

Tailwind

colors: {
  custom: {
    50: '#99d2ed',
    500: '#63bfe5',
    950: '#000000',
  },
}

SCSS

$custom: #63bfe5;
$custom-light: #99d2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#63bfe5",
  "rgb": {
    "r": 99,
    "g": 191,
    "b": 229
  },
  "hsl": {
    "h": 197.538,
    "s": 71.429,
    "l": 64.314
  },
  "oklch": {
    "l": 0.76266,
    "c": 0.10302,
    "h": 227.4
  },
  "luminance": 0.45571
}

Semantic roles & 50–950 ramp

primary

#63BFE5

secondary

#E8C9BB

accent

#4B12D3

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #63BFE5

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

Preview Lab → · Contrast checker → · Palette generator →