#4BC9F0#4BC9F0

#4BC9F0 is a light, vivid cyan. Relative luminance 0.496; OKLCH L 78.2% C 0.122 H 222.4°. Best body text is #000000 at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#4BC9F0
RGB	rgb(75, 201, 240)
HSL	hsl(194, 85%, 62%)
HSV	hsv(194, 69%, 94%)
CMYK	cmyk(68.7%, 16.3%, 0%, 5.9%)
CIE-LAB	lab(75.80, -22.51, -29.36)
CIE-LCH	lch(75.80, 37.00, 232.52°)
OKLab	oklab(78.22% -0.09 -0.082)
OKLCH	oklch(78.22% 0.122 222.4)
XYZ	xyz(39.5100, 49.5560, 89.9042)
Luminance	0.4956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4BC9F0 #F0724B

analogous

#4BF0C5 #4BC9F0 #4B77F0

triadic

#4BC9F0 #F04BC9 #C9F04B

tetradic

#4BC9F0 #C54BF0 #F0724B #77F04B

square

#4BC9F0 #C54BF0 #F0724B #77F04B

split-complementary

#4BC9F0 #F04B77 #F0C54B

monochromatic

#0F8BB2 #14B8EA #4BC9F0 #83DAF5 #BCEBF9

Accessibility & contrast

On white

1.92

#4BC9F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.91

#4BC9F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4BC9F0

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4BC9F0	#FFFFFF	#000000	##000000
##4BC9F0	1.00	1.92	10.91	10.91
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.91	21.00	1.00	1.00
##000000	10.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C4F2

Deuteranopia (green-blind)

#9BB4F0

Tritanopia (blue-blind)

#00D5D6

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #4bc9f0;
/* rgb */ color: rgb(75, 201, 240);
/* oklch */ color: oklch(78.2% 0.122 222.4);

Tailwind

colors: {
  custom: {
    50: '#90d9f5',
    500: '#4bc9f0',
    950: '#000000',
  },
}

SCSS

$custom: #4bc9f0;
$custom-light: #90d9f5;
$custom-dark: #000000;

JSON

{
  "hex": "#4bc9f0",
  "rgb": {
    "r": 75,
    "g": 201,
    "b": 240
  },
  "hsl": {
    "h": 194.182,
    "s": 84.615,
    "l": 61.765
  },
  "oklch": {
    "l": 0.78216,
    "c": 0.12177,
    "h": 222.4
  },
  "luminance": 0.4956
}

Semantic roles & 50–950 ramp

primary

#4BC9F0

secondary

#EABBAD

accent

#3904E1

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #4BC9F0

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

Preview Lab → · Contrast checker → · Palette generator →