#63BCF3#63BCF3

#63BCF3 is a light, moderate cyan. Relative luminance 0.451; OKLCH L 76.2% C 0.117 H 238.1°. Best body text is #000000 at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#63BCF3
RGB	rgb(99, 188, 243)
HSL	hsl(203, 86%, 67%)
HSV	hsv(203, 59%, 95%)
CMYK	cmyk(59.3%, 22.6%, 0%, 4.7%)
CIE-LAB	lab(72.95, -10.90, -35.31)
CIE-LCH	lch(72.95, 36.96, 252.84°)
OKLab	oklab(76.19% -0.0617 -0.0989)
OKLCH	oklch(76.19% 0.117 238.1)
XYZ	xyz(39.3004, 45.0864, 91.4081)
Luminance	0.4509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCF3 #F39A63

analogous

#63F3E2 #63BCF3 #6374F3

triadic

#63BCF3 #F363BC #BCF363

tetradic

#63BCF3 #E263F3 #F39A63 #74F363

square

#63BCF3 #E263F3 #F39A63 #74F363

split-complementary

#63BCF3 #F36374 #F3E263

monochromatic

#1084CC #2AA4EF #63BCF3 #9CD4F7 #D5EDFC

Accessibility & contrast

On white

2.10

#63BCF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.02

#63BCF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCF3

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCF3	#FFFFFF	#000000	##000000
##63BCF3	1.00	2.10	10.02	10.02
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.02	21.00	1.00	1.00
##000000	10.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3BBF6

Deuteranopia (green-blind)

#8FADF2

Tritanopia (blue-blind)

#00CACF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bcf3;
/* rgb */ color: rgb(99, 188, 243);
/* oklch */ color: oklch(76.2% 0.117 238.1);

Tailwind

colors: {
  custom: {
    50: '#9bd0f7',
    500: '#63bcf3',
    950: '#000000',
  },
}

SCSS

$custom: #63bcf3;
$custom-light: #9bd0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63bcf3",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 243
  },
  "hsl": {
    "h": 202.917,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.76191,
    "c": 0.11656,
    "h": 238.1
  },
  "luminance": 0.4509
}

Semantic roles & 50–950 ramp

primary

#63BCF3

secondary

#F0D4C2

accent

#5803E2

background

#FAFCFF

surface

#F4F9FE

border

#CED2D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BCF3

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

Preview Lab → · Contrast checker → · Palette generator →