#63B9F6#63B9F6

#63B9F6 is a light, vivid cyan. Relative luminance 0.440; OKLCH L 75.7% C 0.121 H 241.7°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#63B9F6
RGB	rgb(99, 185, 246)
HSL	hsl(205, 89%, 68%)
HSV	hsv(205, 60%, 96%)
CMYK	cmyk(59.8%, 24.8%, 0%, 3.5%)
CIE-LAB	lab(72.23, -8.36, -38.05)
CIE-LCH	lch(72.23, 38.96, 257.61°)
OKLab	oklab(75.66% -0.0576 -0.1068)
OKLCH	oklch(75.66% 0.121 241.7)
XYZ	xyz(39.1229, 44.0007, 93.6021)
Luminance	0.4400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B9F6 #F6A063

analogous

#63F6EA #63B9F6 #636FF6

triadic

#63B9F6 #F663B9 #B9F663

tetradic

#63B9F6 #EA63F6 #F6A063 #6FF663

square

#63B9F6 #EA63F6 #F6A063 #6FF663

split-complementary

#63B9F6 #F6636F #F6EA63

monochromatic

#0C80D2 #299FF3 #63B9F6 #9DD3F9 #D7EDFD

Accessibility & contrast

On white

2.14

#63B9F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#63B9F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B9F6

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B9F6	#FFFFFF	#000000	##000000
##63B9F6	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB9F9

Deuteranopia (green-blind)

#8AABF5

Tritanopia (blue-blind)

#00C8CE

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63b9f6;
/* rgb */ color: rgb(99, 185, 246);
/* oklch */ color: oklch(75.7% 0.121 241.7);

Tailwind

colors: {
  custom: {
    50: '#9bcdf9',
    500: '#63b9f6',
    950: '#000000',
  },
}

SCSS

$custom: #63b9f6;
$custom-light: #9bcdf9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b9f6",
  "rgb": {
    "r": 99,
    "g": 185,
    "b": 246
  },
  "hsl": {
    "h": 204.898,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.75661,
    "c": 0.12133,
    "h": 241.7
  },
  "luminance": 0.44004
}

Semantic roles & 50–950 ramp

primary

#63B9F6

secondary

#F1D7C4

accent

#5F00E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B9F6

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

Preview Lab → · Contrast checker → · Palette generator →