#63B5CF#63B5CF

#63B5CF is a light, moderate cyan. Relative luminance 0.402; OKLCH L 73.1% C 0.088 H 220.8°. Best body text is #000000 at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#63B5CF
RGB	rgb(99, 181, 207)
HSL	hsl(194, 53%, 60%)
HSV	hsv(194, 52%, 81%)
CMYK	cmyk(52.2%, 12.6%, 0%, 18.8%)
CIE-LAB	lab(69.61, -17.86, -20.83)
CIE-LCH	lch(69.61, 27.44, 229.39°)
OKLab	oklab(73.09% -0.0669 -0.0577)
OKLCH	oklch(73.09% 0.088 220.8)
XYZ	xyz(32.9276, 40.2025, 65.0440)
Luminance	0.4021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B5CF #CF7D63

analogous

#63CFB3 #63B5CF #637FCF

triadic

#63B5CF #CF63B5 #B5CF63

tetradic

#63B5CF #B363CF #CF7D63 #7FCF63

square

#63B5CF #B363CF #CF7D63 #7FCF63

split-complementary

#63B5CF #CF637F #CFB363

monochromatic

#2B758C #3A9CBB #63B5CF #92CBDD #C1E1EC

Accessibility & contrast

On white

2.32

#63B5CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.04

#63B5CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B5CF

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B5CF	#FFFFFF	#000000	##000000
##63B5CF	1.00	2.32	9.04	9.04
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.04	21.00	1.00	1.00
##000000	9.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B1D0

Deuteranopia (green-blind)

#95A5CF

Tritanopia (blue-blind)

#19BEBD

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b5cf;
/* rgb */ color: rgb(99, 181, 207);
/* oklch */ color: oklch(73.1% 0.088 220.8);

Tailwind

colors: {
  custom: {
    50: '#97cbdd',
    500: '#63b5cf',
    950: '#000000',
  },
}

SCSS

$custom: #63b5cf;
$custom-light: #97cbdd;
$custom-dark: #000000;

JSON

{
  "hex": "#63b5cf",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 207
  },
  "hsl": {
    "h": 194.444,
    "s": 52.941,
    "l": 60
  },
  "oklch": {
    "l": 0.73094,
    "c": 0.08831,
    "h": 220.8
  },
  "luminance": 0.40205
}

Semantic roles & 50–950 ramp

primary

#63B5CF

secondary

#DCBCB2

accent

#6E4BDC

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B5CF

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

Preview Lab → · Contrast checker → · Palette generator →