#63B5DA#63B5DA

#63B5DA is a light, moderate cyan. Relative luminance 0.408; OKLCH L 73.5% C 0.096 H 229.3°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#63B5DA
RGB	rgb(99, 181, 218)
HSL	hsl(199, 62%, 62%)
HSV	hsv(199, 55%, 85%)
CMYK	cmyk(54.6%, 17%, 0%, 14.5%)
CIE-LAB	lab(70.01, -14.67, -26.26)
CIE-LCH	lch(70.01, 30.08, 240.80°)
OKLab	oklab(73.54% -0.0627 -0.073)
OKLCH	oklch(73.54% 0.096 229.3)
XYZ	xyz(34.3196, 40.7593, 72.3748)
Luminance	0.4076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B5DA #DA8863

analogous

#63DAC3 #63B5DA #637ADA

triadic

#63B5DA #DA63B5 #B5DA63

tetradic

#63B5DA #C363DA #DA8863 #7ADA63

square

#63B5DA #C363DA #DA8863 #7ADA63

split-complementary

#63B5DA #DA637A #DAC363

monochromatic

#25789D #329ECE #63B5DA #94CCE6 #C6E4F1

Accessibility & contrast

On white

2.29

#63B5DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#63B5DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B5DA

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B5DA	#FFFFFF	#000000	##000000
##63B5DA	1.00	2.29	9.15	9.15
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B2DC

Deuteranopia (green-blind)

#91A6DA

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b5da;
/* rgb */ color: rgb(99, 181, 218);
/* oklch */ color: oklch(73.5% 0.096 229.3);

Tailwind

colors: {
  custom: {
    50: '#98cbe5',
    500: '#63b5da',
    950: '#000000',
  },
}

SCSS

$custom: #63b5da;
$custom-light: #98cbe5;
$custom-dark: #000000;

JSON

{
  "hex": "#63b5da",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 218
  },
  "hsl": {
    "h": 198.655,
    "s": 61.658,
    "l": 62.157
  },
  "oklch": {
    "l": 0.73538,
    "c": 0.0963,
    "h": 229.3
  },
  "luminance": 0.40762
}

Semantic roles & 50–950 ramp

primary

#63B5DA

secondary

#E2C4B7

accent

#521CC9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1315

muted

#7E8284

Preview Lab

Preview with #63B5DA

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

Preview Lab → · Contrast checker → · Palette generator →