#63A6EB#63A6EB

#63A6EB is a light, vivid cyan. Relative luminance 0.359; OKLCH L 71.0% C 0.123 H 250.6°. Best body text is #000000 at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#63A6EB
RGB	rgb(99, 166, 235)
HSL	hsl(210, 77%, 65%)
HSV	hsv(210, 58%, 92%)
CMYK	cmyk(57.9%, 29.4%, 0%, 7.8%)
CIE-LAB	lab(66.46, -1.29, -41.07)
CIE-LCH	lch(66.46, 41.09, 268.21°)
OKLab	oklab(70.96% -0.0408 -0.1156)
OKLCH	oklch(70.96% 0.123 250.6)
XYZ	xyz(33.7718, 35.9203, 83.7347)
Luminance	0.3592 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A6EB #EBA863

analogous

#63EAEB #63A6EB #6463EB

triadic

#63A6EB #EB63A6 #A6EB63

tetradic

#63A6EB #EB63EA #EBA863 #63EB64

square

#63A6EB #EB63EA #EBA863 #63EB64

split-complementary

#63A6EB #EB6463 #EAEB63

monochromatic

#1869BC #2D87E4 #63A6EB #99C5F2 #CFE4F9

Accessibility & contrast

On white

2.57

#63A6EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.18

#63A6EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A6EB

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A6EB	#FFFFFF	#000000	##000000
##63A6EB	1.00	2.57	8.18	8.18
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.18	21.00	1.00	1.00
##000000	8.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89A9EE

Deuteranopia (green-blind)

#779CEA

Tritanopia (blue-blind)

#00B6BE

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a6eb;
/* rgb */ color: rgb(99, 166, 235);
/* oklch */ color: oklch(71.0% 0.123 250.6);

Tailwind

colors: {
  custom: {
    50: '#99c0f1',
    500: '#63a6eb',
    950: '#000000',
  },
}

SCSS

$custom: #63a6eb;
$custom-light: #99c0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63a6eb",
  "rgb": {
    "r": 99,
    "g": 166,
    "b": 235
  },
  "hsl": {
    "h": 210.441,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.70958,
    "c": 0.12263,
    "h": 250.6
  },
  "luminance": 0.35923
}

Semantic roles & 50–950 ramp

primary

#63A6EB

secondary

#ECD5BE

accent

#740CDA

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1217

muted

#7E8185

Preview Lab

Preview with #63A6EB

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

Preview Lab → · Contrast checker → · Palette generator →