#63BDF5#63BDF5

#63BDF5 is a light, moderate cyan. Relative luminance 0.456; OKLCH L 76.5% C 0.118 H 238.3°. Best body text is #000000 at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#63BDF5
RGB	rgb(99, 189, 245)
HSL	hsl(203, 88%, 67%)
HSV	hsv(203, 60%, 96%)
CMYK	cmyk(59.6%, 22.9%, 0%, 3.9%)
CIE-LAB	lab(73.31, -10.83, -35.83)
CIE-LCH	lch(73.31, 37.43, 253.19°)
OKLab	oklab(76.5% -0.062 -0.1004)
OKLCH	oklch(76.5% 0.118 238.3)
XYZ	xyz(39.8184, 45.6366, 93.0788)
Luminance	0.4564 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BDF5 #F59B63

analogous

#63F5E4 #63BDF5 #6374F5

triadic

#63BDF5 #F563BD #BDF563

tetradic

#63BDF5 #E463F5 #F59B63 #74F563

square

#63BDF5 #E463F5 #F59B63 #74F563

split-complementary

#63BDF5 #F56374 #F5E463

monochromatic

#0D85D0 #29A5F1 #63BDF5 #9DD5F9 #D6EEFC

Accessibility & contrast

On white

2.07

#63BDF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.13

#63BDF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BDF5

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BDF5	#FFFFFF	#000000	##000000
##63BDF5	1.00	2.07	10.13	10.13
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.13	21.00	1.00	1.00
##000000	10.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3BCF8

Deuteranopia (green-blind)

#8FADF4

Tritanopia (blue-blind)

#00CBD0

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #63bdf5;
/* rgb */ color: rgb(99, 189, 245);
/* oklch */ color: oklch(76.5% 0.118 238.3);

Tailwind

colors: {
  custom: {
    50: '#9bd0f8',
    500: '#63bdf5',
    950: '#000000',
  },
}

SCSS

$custom: #63bdf5;
$custom-light: #9bd0f8;
$custom-dark: #000000;

JSON

{
  "hex": "#63bdf5",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 245
  },
  "hsl": {
    "h": 203.014,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.76503,
    "c": 0.11803,
    "h": 238.3
  },
  "luminance": 0.4564
}

Semantic roles & 50–950 ramp

primary

#63BDF5

secondary

#F1D5C3

accent

#5801E5

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #63BDF5

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

Preview Lab → · Contrast checker → · Palette generator →