#63B8F7#63B8F7

#63B8F7 is a light, vivid cyan. Relative luminance 0.436; OKLCH L 75.5% C 0.123 H 242.8°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#63B8F7
RGB	rgb(99, 184, 247)
HSL	hsl(206, 90%, 68%)
HSV	hsv(206, 60%, 97%)
CMYK	cmyk(59.9%, 25.5%, 0%, 3.1%)
CIE-LAB	lab(71.99, -7.51, -38.96)
CIE-LCH	lch(71.99, 39.68, 259.09°)
OKLab	oklab(75.49% -0.0562 -0.1094)
OKLCH	oklch(75.49% 0.123 242.8)
XYZ	xyz(39.0683, 43.6453, 94.3432)
Luminance	0.4365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8F7 #F7A263

analogous

#63F7EC #63B8F7 #636EF7

triadic

#63B8F7 #F763B8 #B8F763

tetradic

#63B8F7 #EC63F7 #F7A263 #6EF763

square

#63B8F7 #EC63F7 #F7A263 #6EF763

split-complementary

#63B8F7 #F7636E #F7EC63

monochromatic

#0B7FD5 #299EF4 #63B8F7 #9DD2FA #D7EDFD

Accessibility & contrast

On white

2.16

#63B8F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.73

#63B8F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8F7

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8F7	#FFFFFF	#000000	##000000
##63B8F7	1.00	2.16	9.73	9.73
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.73	21.00	1.00	1.00
##000000	9.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB9FA

Deuteranopia (green-blind)

#88AAF6

Tritanopia (blue-blind)

#00C7CE

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63b8f7;
/* rgb */ color: rgb(99, 184, 247);
/* oklch */ color: oklch(75.5% 0.123 242.8);

Tailwind

colors: {
  custom: {
    50: '#9bcdfa',
    500: '#63b8f7',
    950: '#000000',
  },
}

SCSS

$custom: #63b8f7;
$custom-light: #9bcdfa;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8f7",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 247
  },
  "hsl": {
    "h": 205.541,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.75486,
    "c": 0.12303,
    "h": 242.8
  },
  "luminance": 0.43649
}

Semantic roles & 50–950 ramp

primary

#63B8F7

secondary

#F2D8C4

accent

#6200E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B8F7

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

Preview Lab → · Contrast checker → · Palette generator →