#63B4CC#63B4CC

#63B4CC is a light, moderate cyan. Relative luminance 0.397; OKLCH L 72.7% C 0.086 H 219.3°. Best body text is #000000 at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#63B4CC
RGB	rgb(99, 180, 204)
HSL	hsl(194, 51%, 59%)
HSV	hsv(194, 51%, 80%)
CMYK	cmyk(51.5%, 11.8%, 0%, 20%)
CIE-LAB	lab(69.22, -18.19, -19.78)
CIE-LCH	lch(69.22, 26.87, 227.40°)
OKLab	oklab(72.75% -0.0669 -0.0547)
OKLCH	oklch(72.75% 0.086 219.3)
XYZ	xyz(32.3618, 39.6520, 63.0632)
Luminance	0.3966 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4CC #CC7B63

analogous

#63CCB0 #63B4CC #6380CC

triadic

#63B4CC #CC63B4 #B4CC63

tetradic

#63B4CC #B063CC #CC7B63 #80CC63

square

#63B4CC #B063CC #CC7B63 #80CC63

split-complementary

#63B4CC #CC6380 #CCB063

monochromatic

#2C7388 #3C9AB6 #63B4CC #91CADB #BFE0EA

Accessibility & contrast

On white

2.35

#63B4CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.93

#63B4CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4CC

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4CC	#FFFFFF	#000000	##000000
##63B4CC	1.00	2.35	8.93	8.93
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.93	21.00	1.00	1.00
##000000	8.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B0CD

Deuteranopia (green-blind)

#95A4CC

Tritanopia (blue-blind)

#1FBCBB

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b4cc;
/* rgb */ color: rgb(99, 180, 204);
/* oklch */ color: oklch(72.7% 0.086 219.3);

Tailwind

colors: {
  custom: {
    50: '#97cadb',
    500: '#63b4cc',
    950: '#000000',
  },
}

SCSS

$custom: #63b4cc;
$custom-light: #97cadb;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4cc",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 204
  },
  "hsl": {
    "h": 193.714,
    "s": 50.725,
    "l": 59.412
  },
  "oklch": {
    "l": 0.72746,
    "c": 0.08642,
    "h": 219.3
  },
  "luminance": 0.39655
}

Semantic roles & 50–950 ramp

primary

#63B4CC

secondary

#DABAB1

accent

#6E4EDA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B4CC

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

Preview Lab → · Contrast checker → · Palette generator →