#63ADF9#63ADF9

#63ADF9 is a light, vivid cyan. Relative luminance 0.394; OKLCH L 73.2% C 0.134 H 250.7°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#63ADF9
RGB	rgb(99, 173, 249)
HSL	hsl(210, 93%, 68%)
HSV	hsv(210, 60%, 98%)
CMYK	cmyk(60.2%, 30.5%, 0%, 2.4%)
CIE-LAB	lab(69.02, -0.80, -44.68)
CIE-LCH	lch(69.02, 44.69, 268.98°)
OKLab	oklab(73.18% -0.0442 -0.1261)
OKLCH	oklch(73.18% 0.134 250.7)
XYZ	xyz(37.1818, 39.3759, 95.2450)
Luminance	0.3938 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ADF9 #F9AF63

analogous

#63F8F9 #63ADF9 #6463F9

triadic

#63ADF9 #F963AD #ADF963

tetradic

#63ADF9 #F963F8 #F9AF63 #63F964

square

#63ADF9 #F963F8 #F9AF63 #63F964

split-complementary

#63ADF9 #F96463 #F8F963

monochromatic

#086FD9 #288EF7 #63ADF9 #9ECCFB #D9EBFE

Accessibility & contrast

On white

2.37

#63ADF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#63ADF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ADF9

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ADF9	#FFFFFF	#000000	##000000
##63ADF9	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DB0FC

Deuteranopia (green-blind)

#79A2F7

Tritanopia (blue-blind)

#00BFC8

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63adf9;
/* rgb */ color: rgb(99, 173, 249);
/* oklch */ color: oklch(73.2% 0.134 250.7);

Tailwind

colors: {
  custom: {
    50: '#9bc5fb',
    500: '#63adf9',
    950: '#000000',
  },
}

SCSS

$custom: #63adf9;
$custom-light: #9bc5fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63adf9",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 249
  },
  "hsl": {
    "h": 210.4,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.73176,
    "c": 0.13361,
    "h": 250.7
  },
  "luminance": 0.39379
}

Semantic roles & 50–950 ramp

primary

#63ADF9

secondary

#F3DCC5

accent

#7400E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ADF9

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

Preview Lab → · Contrast checker → · Palette generator →