#4FD9FF#4FD9FF

#4FD9FF is a very light, vivid cyan. Relative luminance 0.585; OKLCH L 82.6% C 0.128 H 219.9°. Best body text is #000000 at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#4FD9FF
RGB	rgb(79, 217, 255)
HSL	hsl(193, 100%, 65%)
HSV	hsv(193, 69%, 100%)
CMYK	cmyk(69%, 14.9%, 0%, 0%)
CIE-LAB	lab(81.02, -25.39, -29.35)
CIE-LCH	lch(81.02, 38.80, 229.14°)
OKLab	oklab(82.61% -0.098 -0.0819)
OKLCH	oklch(82.61% 0.128 219.9)
XYZ	xyz(46.0798, 58.5027, 103.4520)
Luminance	0.5851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FD9FF #FF754F

analogous

#4FFFCD #4FD9FF #4F81FF

triadic

#4FD9FF #FF4FD9 #D9FF4F

tetradic

#4FD9FF #CD4FFF #FF754F #81FF4F

square

#4FD9FF #CD4FFF #FF754F #81FF4F

split-complementary

#4FD9FF #FF4F81 #FFCD4F

monochromatic

#00A6D4 #12CCFF #4FD9FF #8CE6FF #C9F3FF

Accessibility & contrast

On white

1.65

#4FD9FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.70

#4FD9FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FD9FF

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FD9FF	#FFFFFF	#000000	##000000
##4FD9FF	1.00	1.65	12.70	12.70
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.70	21.00	1.00	1.00
##000000	12.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2D3FF

Deuteranopia (green-blind)

#A9C1FF

Tritanopia (blue-blind)

#00E5E5

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #4fd9ff;
/* rgb */ color: rgb(79, 217, 255);
/* oklch */ color: oklch(82.6% 0.128 219.9);

Tailwind

colors: {
  custom: {
    50: '#95e5ff',
    500: '#4fd9ff',
    950: '#000000',
  },
}

SCSS

$custom: #4fd9ff;
$custom-light: #95e5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4fd9ff",
  "rgb": {
    "r": 79,
    "g": 217,
    "b": 255
  },
  "hsl": {
    "h": 192.955,
    "s": 100,
    "l": 65.49
  },
  "oklch": {
    "l": 0.82611,
    "c": 0.12772,
    "h": 219.9
  },
  "luminance": 0.58508
}

Semantic roles & 50–950 ramp

primary

#4FD9FF

secondary

#CE4924

accent

#3200E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1518

muted

#808486

Preview Lab

Preview with #4FD9FF

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

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