#63B3D7#63B3D7

#63B3D7 is a light, moderate cyan. Relative luminance 0.398; OKLCH L 73.0% C 0.094 H 229.2°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#63B3D7
RGB	rgb(99, 179, 215)
HSL	hsl(199, 59%, 62%)
HSV	hsv(199, 54%, 84%)
CMYK	cmyk(54%, 16.7%, 0%, 15.7%)
CIE-LAB	lab(69.32, -14.49, -25.66)
CIE-LCH	lch(69.32, 29.47, 240.54°)
OKLab	oklab(72.96% -0.0616 -0.0714)
OKLCH	oklch(72.96% 0.094 229.2)
XYZ	xyz(33.5268, 39.7962, 70.1914)
Luminance	0.3980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3D7 #D78763

analogous

#63D7C1 #63B3D7 #6379D7

triadic

#63B3D7 #D763B3 #B3D763

tetradic

#63B3D7 #C163D7 #D78763 #79D763

square

#63B3D7 #C163D7 #D78763 #79D763

split-complementary

#63B3D7 #D76379 #D7C163

monochromatic

#277598 #349BC9 #63B3D7 #94CBE3 #C4E2F0

Accessibility & contrast

On white

2.34

#63B3D7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#63B3D7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3D7

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3D7	#FFFFFF	#000000	##000000
##63B3D7	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B0D9

Deuteranopia (green-blind)

#90A4D7

Tritanopia (blue-blind)

#02BDBF

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b3d7;
/* rgb */ color: rgb(99, 179, 215);
/* oklch */ color: oklch(73.0% 0.094 229.2);

Tailwind

colors: {
  custom: {
    50: '#97c9e3',
    500: '#63b3d7',
    950: '#000000',
  },
}

SCSS

$custom: #63b3d7;
$custom-light: #97c9e3;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3d7",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 215
  },
  "hsl": {
    "h": 198.621,
    "s": 59.184,
    "l": 61.569
  },
  "oklch": {
    "l": 0.72958,
    "c": 0.09428,
    "h": 229.2
  },
  "luminance": 0.39799
}

Semantic roles & 50–950 ramp

primary

#63B3D7

secondary

#E0C3B5

accent

#531FC7

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B3D7

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

Preview Lab → · Contrast checker → · Palette generator →