#63D1F9#63D1F9

#63D1F9 is a light, moderate cyan. Relative luminance 0.551; OKLCH L 81.2% C 0.115 H 224.8°. Best body text is #000000 at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#63D1F9
RGB	rgb(99, 209, 249)
HSL	hsl(196, 93%, 68%)
HSV	hsv(196, 60%, 98%)
CMYK	cmyk(60.2%, 16.1%, 0%, 2.4%)
CIE-LAB	lab(79.09, -20.07, -29.06)
CIE-LCH	lch(79.09, 35.32, 235.37°)
OKLab	oklab(81.16% -0.0814 -0.081)
OKLCH	oklch(81.16% 0.115 224.8)
XYZ	xyz(45.0382, 55.0886, 97.8638)
Luminance	0.5509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D1F9 #F98B63

analogous

#63F9D6 #63D1F9 #6386F9

triadic

#63D1F9 #F963D1 #D1F963

tetradic

#63D1F9 #D663F9 #F98B63 #86F963

square

#63D1F9 #D663F9 #F98B63 #86F963

split-complementary

#63D1F9 #F96386 #F9D663

monochromatic

#08A2D9 #28C0F7 #63D1F9 #9EE2FB #D9F4FE

Accessibility & contrast

On white

1.75

#63D1F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.02

#63D1F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D1F9

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D1F9	#FFFFFF	#000000	##000000
##63D1F9	1.00	1.75	12.02	12.02
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.02	21.00	1.00	1.00
##000000	12.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBCDFB

Deuteranopia (green-blind)

#A5BDF9

Tritanopia (blue-blind)

#00DDDE

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #63d1f9;
/* rgb */ color: rgb(99, 209, 249);
/* oklch */ color: oklch(81.2% 0.115 224.8);

Tailwind

colors: {
  custom: {
    50: '#9cdffb',
    500: '#63d1f9',
    950: '#000000',
  },
}

SCSS

$custom: #63d1f9;
$custom-light: #9cdffb;
$custom-dark: #000000;

JSON

{
  "hex": "#63d1f9",
  "rgb": {
    "r": 99,
    "g": 209,
    "b": 249
  },
  "hsl": {
    "h": 196,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.81156,
    "c": 0.11483,
    "h": 224.8
  },
  "luminance": 0.55093
}

Semantic roles & 50–950 ramp

primary

#63D1F9

secondary

#D25A2E

accent

#3D00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D1F9

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

Preview Lab → · Contrast checker → · Palette generator →