#63B8F1#63B8F1

#63B8F1 is a light, moderate cyan. Relative luminance 0.433; OKLCH L 75.2% C 0.117 H 240.1°. Best body text is #000000 at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#63B8F1
RGB	rgb(99, 184, 241)
HSL	hsl(204, 84%, 67%)
HSV	hsv(204, 59%, 95%)
CMYK	cmyk(58.9%, 23.7%, 0%, 5.5%)
CIE-LAB	lab(71.75, -9.36, -36.10)
CIE-LCH	lch(71.75, 37.29, 255.46°)
OKLab	oklab(75.21% -0.0581 -0.1012)
OKLCH	oklch(75.21% 0.117 240.1)
XYZ	xyz(38.1573, 43.2809, 89.5452)
Luminance	0.4329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8F1 #F19C63

analogous

#63F1E3 #63B8F1 #6371F1

triadic

#63B8F1 #F163B8 #B8F163

tetradic

#63B8F1 #E363F1 #F19C63 #71F163

square

#63B8F1 #E363F1 #F19C63 #71F163

split-complementary

#63B8F1 #F16371 #F1E363

monochromatic

#127FC8 #2B9EEC #63B8F1 #9BD2F6 #D3EBFB

Accessibility & contrast

On white

2.17

#63B8F1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.66

#63B8F1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8F1

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8F1	#FFFFFF	#000000	##000000
##63B8F1	1.00	2.17	9.66	9.66
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.66	21.00	1.00	1.00
##000000	9.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB8F4

Deuteranopia (green-blind)

#8BA9F0

Tritanopia (blue-blind)

#00C6CB

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63b8f1;
/* rgb */ color: rgb(99, 184, 241);
/* oklch */ color: oklch(75.2% 0.117 240.1);

Tailwind

colors: {
  custom: {
    50: '#9acdf6',
    500: '#63b8f1',
    950: '#000000',
  },
}

SCSS

$custom: #63b8f1;
$custom-light: #9acdf6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8f1",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 241
  },
  "hsl": {
    "h": 204.085,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.75211,
    "c": 0.11668,
    "h": 240.1
  },
  "luminance": 0.43285
}

Semantic roles & 50–950 ramp

primary

#63B8F1

secondary

#EFD3C1

accent

#5D06E0

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B8F1

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

Preview Lab → · Contrast checker → · Palette generator →