#63B1EA#63B1EA

#63B1EA is a light, moderate cyan. Relative luminance 0.400; OKLCH L 73.3% C 0.113 H 242.2°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#63B1EA
RGB	rgb(99, 177, 234)
HSL	hsl(205, 76%, 65%)
HSV	hsv(205, 58%, 92%)
CMYK	cmyk(57.7%, 24.4%, 0%, 8.2%)
CIE-LAB	lab(69.49, -7.71, -35.79)
CIE-LCH	lch(69.49, 36.61, 257.85°)
OKLab	oklab(73.34% -0.0529 -0.1003)
OKLCH	oklch(73.34% 0.113 242.2)
XYZ	xyz(35.7135, 40.0342, 83.6713)
Luminance	0.4004 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1EA #EA9C63

analogous

#63EADF #63B1EA #636EEA

triadic

#63B1EA #EA63B1 #B1EA63

tetradic

#63B1EA #DF63EA #EA9C63 #6EEA63

square

#63B1EA #DF63EA #EA9C63 #6EEA63

split-complementary

#63B1EA #EA636E #EADF63

monochromatic

#1976BA #2D96E3 #63B1EA #99CCF1 #CFE7F9

Accessibility & contrast

On white

2.33

#63B1EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.01

#63B1EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1EA

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1EA	#FFFFFF	#000000	##000000
##63B1EA	1.00	2.33	9.01	9.01
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.01	21.00	1.00	1.00
##000000	9.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B1ED

Deuteranopia (green-blind)

#86A4E9

Tritanopia (blue-blind)

#00BFC4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b1ea;
/* rgb */ color: rgb(99, 177, 234);
/* oklch */ color: oklch(73.3% 0.113 242.2);

Tailwind

colors: {
  custom: {
    50: '#99c8f1',
    500: '#63b1ea',
    950: '#000000',
  },
}

SCSS

$custom: #63b1ea;
$custom-light: #99c8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1ea",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 234
  },
  "hsl": {
    "h": 205.333,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.73336,
    "c": 0.11343,
    "h": 242.2
  },
  "luminance": 0.40037
}

Semantic roles & 50–950 ramp

primary

#63B1EA

secondary

#EBD1BE

accent

#630DD8

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63B1EA

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

Preview Lab → · Contrast checker → · Palette generator →