#63B7DF#63B7DF

#63B7DF is a light, moderate cyan. Relative luminance 0.418; OKLCH L 74.2% C 0.100 H 230.8°. Best body text is #000000 at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#63B7DF
RGB	rgb(99, 183, 223)
HSL	hsl(199, 66%, 63%)
HSV	hsv(199, 56%, 87%)
CMYK	cmyk(55.6%, 17.9%, 0%, 12.5%)
CIE-LAB	lab(70.76, -14.26, -27.83)
CIE-LCH	lch(70.76, 31.27, 242.87°)
OKLab	oklab(74.2% -0.0632 -0.0775)
OKLCH	oklch(74.2% 0.1 230.8)
XYZ	xyz(35.3933, 41.8441, 76.0093)
Luminance	0.4185 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7DF #DF8B63

analogous

#63DFC9 #63B7DF #6379DF

triadic

#63B7DF #DF63B7 #B7DF63

tetradic

#63B7DF #C963DF #DF8B63 #79DF63

square

#63B7DF #C963DF #DF8B63 #79DF63

split-complementary

#63B7DF #DF6379 #DFC963

monochromatic

#227BA6 #30A0D5 #63B7DF #96CEE9 #C9E6F4

Accessibility & contrast

On white

2.24

#63B7DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.37

#63B7DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7DF

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7DF	#FFFFFF	#000000	##000000
##63B7DF	1.00	2.24	9.37	9.37
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.37	21.00	1.00	1.00
##000000	9.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3B5E1

Deuteranopia (green-blind)

#91A7DE

Tritanopia (blue-blind)

#00C2C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b7df;
/* rgb */ color: rgb(99, 183, 223);
/* oklch */ color: oklch(74.2% 0.100 230.8);

Tailwind

colors: {
  custom: {
    50: '#98cce9',
    500: '#63b7df',
    950: '#000000',
  },
}

SCSS

$custom: #63b7df;
$custom-light: #98cce9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7df",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 223
  },
  "hsl": {
    "h": 199.355,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.74201,
    "c": 0.09998,
    "h": 230.8
  },
  "luminance": 0.41847
}

Semantic roles & 50–950 ramp

primary

#63B7DF

secondary

#E5C7B9

accent

#5218CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B7DF

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

Preview Lab → · Contrast checker → · Palette generator →