#63B4E1#63B4E1

#63B4E1 is a light, moderate cyan. Relative luminance 0.407; OKLCH L 73.6% C 0.103 H 234.9°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#63B4E1
RGB	rgb(99, 180, 225)
HSL	hsl(201, 68%, 64%)
HSV	hsv(201, 56%, 88%)
CMYK	cmyk(56%, 20%, 0%, 11.8%)
CIE-LAB	lab(69.99, -12.06, -30.12)
CIE-LCH	lch(69.99, 32.44, 248.17°)
OKLab	oklab(73.61% -0.0592 -0.084)
OKLCH	oklch(73.61% 0.103 234.9)
XYZ	xyz(35.0524, 40.7283, 77.2337)
Luminance	0.4073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4E1 #E19063

analogous

#63E1CF #63B4E1 #6375E1

triadic

#63B4E1 #E163B4 #B4E163

tetradic

#63B4E1 #CF63E1 #E19063 #75E163

square

#63B4E1 #CF63E1 #E19063 #75E163

split-complementary

#63B4E1 #E16375 #E1CF63

monochromatic

#2178A9 #309BD7 #63B4E1 #96CDEB #CAE5F5

Accessibility & contrast

On white

2.30

#63B4E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#63B4E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4E1

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4E1	#FFFFFF	#000000	##000000
##63B4E1	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB2E3

Deuteranopia (green-blind)

#8DA5E0

Tritanopia (blue-blind)

#00C0C3

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b4e1;
/* rgb */ color: rgb(99, 180, 225);
/* oklch */ color: oklch(73.6% 0.103 234.9);

Tailwind

colors: {
  custom: {
    50: '#98caea',
    500: '#63b4e1',
    950: '#000000',
  },
}

SCSS

$custom: #63b4e1;
$custom-light: #98caea;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4e1",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 225
  },
  "hsl": {
    "h": 201.429,
    "s": 67.742,
    "l": 63.529
  },
  "oklch": {
    "l": 0.73607,
    "c": 0.10279,
    "h": 234.9
  },
  "luminance": 0.40731
}

Semantic roles & 50–950 ramp

primary

#63B4E1

secondary

#E6CABA

accent

#5816D0

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B4E1

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

Preview Lab → · Contrast checker → · Palette generator →