#63B9F2#63B9F2

#63B9F2 is a light, moderate cyan. Relative luminance 0.438; OKLCH L 75.5% C 0.117 H 239.8°. Best body text is #000000 at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#63B9F2
RGB	rgb(99, 185, 242)
HSL	hsl(204, 85%, 67%)
HSV	hsv(204, 59%, 95%)
CMYK	cmyk(59.1%, 23.6%, 0%, 5.1%)
CIE-LAB	lab(72.07, -9.60, -36.14)
CIE-LCH	lch(72.07, 37.39, 255.13°)
OKLab	oklab(75.48% -0.0588 -0.1013)
OKLCH	oklch(75.48% 0.117 239.8)
XYZ	xyz(38.5156, 43.7577, 90.4035)
Luminance	0.4376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B9F2 #F29C63

analogous

#63F2E3 #63B9F2 #6372F2

triadic

#63B9F2 #F263B9 #B9F263

tetradic

#63B9F2 #E363F2 #F29C63 #72F263

square

#63B9F2 #E363F2 #F29C63 #72F263

split-complementary

#63B9F2 #F26372 #F2E363

monochromatic

#1180CA #2BA0ED #63B9F2 #9BD2F7 #D4ECFB

Accessibility & contrast

On white

2.15

#63B9F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.75

#63B9F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B9F2

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B9F2	#FFFFFF	#000000	##000000
##63B9F2	1.00	2.15	9.75	9.75
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.75	21.00	1.00	1.00
##000000	9.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB9F5

Deuteranopia (green-blind)

#8CAAF1

Tritanopia (blue-blind)

#00C7CC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63b9f2;
/* rgb */ color: rgb(99, 185, 242);
/* oklch */ color: oklch(75.5% 0.117 239.8);

Tailwind

colors: {
  custom: {
    50: '#9acdf6',
    500: '#63b9f2',
    950: '#000000',
  },
}

SCSS

$custom: #63b9f2;
$custom-light: #9acdf6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b9f2",
  "rgb": {
    "r": 99,
    "g": 185,
    "b": 242
  },
  "hsl": {
    "h": 203.916,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.75479,
    "c": 0.11715,
    "h": 239.8
  },
  "luminance": 0.43761
}

Semantic roles & 50–950 ramp

primary

#63B9F2

secondary

#EFD4C2

accent

#5C04E1

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B9F2

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

Preview Lab → · Contrast checker → · Palette generator →