#63B1DF#63B1DF

#63B1DF is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.8% C 0.102 H 236.4°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#63B1DF
RGB	rgb(99, 177, 223)
HSL	hsl(202, 66%, 63%)
HSV	hsv(202, 56%, 87%)
CMYK	cmyk(55.6%, 20.6%, 0%, 12.5%)
CIE-LAB	lab(69.06, -11.05, -30.46)
CIE-LCH	lch(69.06, 32.40, 250.06°)
OKLab	oklab(72.84% -0.0566 -0.085)
OKLCH	oklch(72.84% 0.102 236.4)
XYZ	xyz(34.1821, 39.4216, 75.6055)
Luminance	0.3942 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1DF #DF9163

analogous

#63DFCF #63B1DF #6373DF

triadic

#63B1DF #DF63B1 #B1DF63

tetradic

#63B1DF #CF63DF #DF9163 #73DF63

square

#63B1DF #CF63DF #DF9163 #73DF63

split-complementary

#63B1DF #DF6373 #DFCF63

monochromatic

#2275A6 #3098D5 #63B1DF #96CAE9 #C9E4F4

Accessibility & contrast

On white

2.36

#63B1DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#63B1DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1DF

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1DF	#FFFFFF	#000000	##000000
##63B1DF	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB0E1

Deuteranopia (green-blind)

#8AA3DE

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #63b1df;
/* rgb */ color: rgb(99, 177, 223);
/* oklch */ color: oklch(72.8% 0.102 236.4);

Tailwind

colors: {
  custom: {
    50: '#98c8e9',
    500: '#63b1df',
    950: '#000000',
  },
}

SCSS

$custom: #63b1df;
$custom-light: #98c8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1df",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 223
  },
  "hsl": {
    "h": 202.258,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.72844,
    "c": 0.10212,
    "h": 236.4
  },
  "luminance": 0.39425
}

Semantic roles & 50–950 ramp

primary

#63B1DF

secondary

#E5C9B9

accent

#5B18CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B1DF

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

Preview Lab → · Contrast checker → · Palette generator →