#63B1F5#63B1F5

#63B1F5 is a light, vivid cyan. Relative luminance 0.407; OKLCH L 73.9% C 0.126 H 246.8°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#63B1F5
RGB	rgb(99, 177, 245)
HSL	hsl(208, 88%, 67%)
HSV	hsv(208, 60%, 96%)
CMYK	cmyk(59.6%, 27.8%, 0%, 3.9%)
CIE-LAB	lab(69.96, -4.29, -41.05)
CIE-LCH	lch(69.96, 41.28, 264.03°)
OKLab	oklab(73.85% -0.0495 -0.1155)
OKLCH	oklch(73.85% 0.126 246.8)
XYZ	xyz(37.3431, 40.6860, 92.2537)
Luminance	0.4069 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1F5 #F5A763

analogous

#63F5F0 #63B1F5 #6368F5

triadic

#63B1F5 #F563B1 #B1F563

tetradic

#63B1F5 #F063F5 #F5A763 #68F563

square

#63B1F5 #F063F5 #F5A763 #68F563

split-complementary

#63B1F5 #F56368 #F5F063

monochromatic

#0D75D0 #2994F1 #63B1F5 #9DCEF9 #D6EBFC

Accessibility & contrast

On white

2.30

#63B1F5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#63B1F5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1F5

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1F5	#FFFFFF	#000000	##000000
##63B1F5	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B3F8

Deuteranopia (green-blind)

#80A5F4

Tritanopia (blue-blind)

#00C1C9

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b1f5;
/* rgb */ color: rgb(99, 177, 245);
/* oklch */ color: oklch(73.9% 0.126 246.8);

Tailwind

colors: {
  custom: {
    50: '#9bc8f8',
    500: '#63b1f5',
    950: '#000000',
  },
}

SCSS

$custom: #63b1f5;
$custom-light: #9bc8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1f5",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 245
  },
  "hsl": {
    "h": 207.945,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.73852,
    "c": 0.12569,
    "h": 246.8
  },
  "luminance": 0.4069
}

Semantic roles & 50–950 ramp

primary

#63B1F5

secondary

#F1D8C3

accent

#6B01E5

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B1F5

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

Preview Lab → · Contrast checker → · Palette generator →