#63B8F6#63B8F6

#63B8F6 is a light, vivid cyan. Relative luminance 0.436; OKLCH L 75.4% C 0.122 H 242.4°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#63B8F6
RGB	rgb(99, 184, 246)
HSL	hsl(205, 89%, 68%)
HSV	hsv(205, 60%, 96%)
CMYK	cmyk(59.8%, 25.2%, 0%, 3.5%)
CIE-LAB	lab(71.95, -7.82, -38.48)
CIE-LCH	lch(71.95, 39.27, 258.52°)
OKLab	oklab(75.44% -0.0565 -0.1081)
OKLCH	oklch(75.44% 0.122 242.4)
XYZ	xyz(38.9144, 43.5838, 93.5326)
Luminance	0.4359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8F6 #F6A163

analogous

#63F6EA #63B8F6 #636EF6

triadic

#63B8F6 #F663B8 #B8F663

tetradic

#63B8F6 #EA63F6 #F6A163 #6EF663

square

#63B8F6 #EA63F6 #F6A163 #6EF663

split-complementary

#63B8F6 #F6636E #F6EA63

monochromatic

#0C7FD2 #299EF3 #63B8F6 #9DD2F9 #D7EDFD

Accessibility & contrast

On white

2.16

#63B8F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.72

#63B8F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8F6

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8F6	#FFFFFF	#000000	##000000
##63B8F6	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB9F9

Deuteranopia (green-blind)

#89AAF5

Tritanopia (blue-blind)

#00C7CD

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63b8f6;
/* rgb */ color: rgb(99, 184, 246);
/* oklch */ color: oklch(75.4% 0.122 242.4);

Tailwind

colors: {
  custom: {
    50: '#9bcdf9',
    500: '#63b8f6',
    950: '#000000',
  },
}

SCSS

$custom: #63b8f6;
$custom-light: #9bcdf9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8f6",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 246
  },
  "hsl": {
    "h": 205.306,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.7544,
    "c": 0.12195,
    "h": 242.4
  },
  "luminance": 0.43587
}

Semantic roles & 50–950 ramp

primary

#63B8F6

secondary

#F1D7C4

accent

#6100E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B8F6

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

Preview Lab → · Contrast checker → · Palette generator →