#63BDF0#63BDF0

#63BDF0 is a light, moderate cyan. Relative luminance 0.453; OKLCH L 76.3% C 0.113 H 235.7°. Best body text is #000000 at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#63BDF0
RGB	rgb(99, 189, 240)
HSL	hsl(202, 82%, 66%)
HSV	hsv(202, 59%, 94%)
CMYK	cmyk(58.8%, 21.2%, 0%, 5.9%)
CIE-LAB	lab(73.11, -12.35, -33.44)
CIE-LCH	lch(73.11, 35.65, 249.73°)
OKLab	oklab(76.28% -0.0637 -0.0935)
OKLCH	oklch(76.28% 0.113 235.7)
XYZ	xyz(39.0654, 45.3354, 89.1131)
Luminance	0.4534 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BDF0 #F09663

analogous

#63F0DD #63BDF0 #6377F0

triadic

#63BDF0 #F063BD #BDF063

tetradic

#63BDF0 #DD63F0 #F09663 #77F063

square

#63BDF0 #DD63F0 #F09663 #77F063

split-complementary

#63BDF0 #F06377 #F0DD63

monochromatic

#1385C6 #2BA5EB #63BDF0 #9BD5F5 #D3ECFB

Accessibility & contrast

On white

2.09

#63BDF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.07

#63BDF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BDF0

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BDF0	#FFFFFF	#000000	##000000
##63BDF0	1.00	2.09	10.07	10.07
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.07	21.00	1.00	1.00
##000000	10.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5BCF2

Deuteranopia (green-blind)

#91ADEF

Tritanopia (blue-blind)

#00CACE

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bdf0;
/* rgb */ color: rgb(99, 189, 240);
/* oklch */ color: oklch(76.3% 0.113 235.7);

Tailwind

colors: {
  custom: {
    50: '#9ad0f5',
    500: '#63bdf0',
    950: '#000000',
  },
}

SCSS

$custom: #63bdf0;
$custom-light: #9ad0f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63bdf0",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 240
  },
  "hsl": {
    "h": 201.702,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.76282,
    "c": 0.11316,
    "h": 235.7
  },
  "luminance": 0.45339
}

Semantic roles & 50–950 ramp

primary

#63BDF0

secondary

#EED1C1

accent

#5507DF

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #63BDF0

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

Preview Lab → · Contrast checker → · Palette generator →