#63BBD3#63BBD3

#63BBD3 is a light, moderate cyan. Relative luminance 0.429; OKLCH L 74.6% C 0.091 H 217.8°. Best body text is #000000 at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#63BBD3
RGB	rgb(99, 187, 211)
HSL	hsl(193, 56%, 61%)
HSV	hsv(193, 53%, 83%)
CMYK	cmyk(53.1%, 11.4%, 0%, 17.3%)
CIE-LAB	lab(71.48, -19.83, -20.18)
CIE-LCH	lch(71.48, 28.29, 225.50°)
OKLab	oklab(74.63% -0.072 -0.0559)
OKLCH	oklch(74.63% 0.091 217.8)
XYZ	xyz(34.6692, 42.8934, 68.0676)
Luminance	0.4290 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBD3 #D37B63

analogous

#63D3B3 #63BBD3 #6383D3

triadic

#63BBD3 #D363BB #BBD363

tetradic

#63BBD3 #B363D3 #D37B63 #83D363

square

#63BBD3 #B363D3 #D37B63 #83D363

split-complementary

#63BBD3 #D36383 #D3B363

monochromatic

#297C92 #37A4C2 #63BBD3 #93D0E0 #C2E5EE

Accessibility & contrast

On white

2.19

#63BBD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.58

#63BBD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBD3

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBD3	#FFFFFF	#000000	##000000
##63BBD3	1.00	2.19	9.58	9.58
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.58	21.00	1.00	1.00
##000000	9.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB6D4

Deuteranopia (green-blind)

#9AAAD3

Tritanopia (blue-blind)

#07C4C2

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #63bbd3;
/* rgb */ color: rgb(99, 187, 211);
/* oklch */ color: oklch(74.6% 0.091 217.8);

Tailwind

colors: {
  custom: {
    50: '#98cfe0',
    500: '#63bbd3',
    950: '#000000',
  },
}

SCSS

$custom: #63bbd3;
$custom-light: #98cfe0;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbd3",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 211
  },
  "hsl": {
    "h": 192.857,
    "s": 56,
    "l": 60.784
  },
  "oklch": {
    "l": 0.74633,
    "c": 0.09117,
    "h": 217.8
  },
  "luminance": 0.42896
}

Semantic roles & 50–950 ramp

primary

#63BBD3

secondary

#DEBDB4

accent

#4522C4

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #63BBD3

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

Preview Lab → · Contrast checker → · Palette generator →