#63B4DF#63B4DF

#63B4DF is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.5% C 0.101 H 233.6°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#63B4DF
RGB	rgb(99, 180, 223)
HSL	hsl(201, 66%, 63%)
HSV	hsv(201, 56%, 87%)
CMYK	cmyk(55.6%, 19.3%, 0%, 12.5%)
CIE-LAB	lab(69.91, -12.66, -29.14)
CIE-LCH	lch(69.91, 31.77, 246.51°)
OKLab	oklab(73.52% -0.0599 -0.0813)
OKLCH	oklch(73.52% 0.101 233.6)
XYZ	xyz(34.7811, 40.6198, 75.8052)
Luminance	0.4062 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4DF #DF8E63

analogous

#63DFCC #63B4DF #6376DF

triadic

#63B4DF #DF63B4 #B4DF63

tetradic

#63B4DF #CC63DF #DF8E63 #76DF63

square

#63B4DF #CC63DF #DF8E63 #76DF63

split-complementary

#63B4DF #DF6376 #DFCC63

monochromatic

#2278A6 #309CD5 #63B4DF #96CCE9 #C9E5F4

Accessibility & contrast

On white

2.30

#63B4DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#63B4DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4DF

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4DF	#FFFFFF	#000000	##000000
##63B4DF	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB2E1

Deuteranopia (green-blind)

#8EA5DE

Tritanopia (blue-blind)

#00BFC2

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b4df;
/* rgb */ color: rgb(99, 180, 223);
/* oklch */ color: oklch(73.5% 0.101 233.6);

Tailwind

colors: {
  custom: {
    50: '#98cae9',
    500: '#63b4df',
    950: '#000000',
  },
}

SCSS

$custom: #63b4df;
$custom-light: #98cae9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4df",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 223
  },
  "hsl": {
    "h": 200.806,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.73521,
    "c": 0.10093,
    "h": 233.6
  },
  "luminance": 0.40623
}

Semantic roles & 50–950 ramp

primary

#63B4DF

secondary

#E5C8B9

accent

#5718CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B4DF

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

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