#4FC9E5#4FC9E5

#4FC9E5 is a light, moderate cyan. Relative luminance 0.491; OKLCH L 77.9% C 0.114 H 215.8°. Best body text is #000000 at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#4FC9E5
RGB	rgb(79, 201, 229)
HSL	hsl(191, 74%, 60%)
HSV	hsv(191, 66%, 90%)
CMYK	cmyk(65.5%, 12.2%, 0%, 10.2%)
CIE-LAB	lab(75.51, -25.28, -23.88)
CIE-LCH	lch(75.51, 34.77, 223.36°)
OKLab	oklab(77.88% -0.0921 -0.0664)
OKLCH	oklch(77.88% 0.114 215.8)
XYZ	xyz(38.2481, 49.0885, 81.5728)
Luminance	0.4909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FC9E5 #E56B4F

analogous

#4FE5B6 #4FC9E5 #4F7EE5

triadic

#4FC9E5 #E54FC9 #C9E54F

tetradic

#4FC9E5 #B64FE5 #E56B4F #7EE54F

square

#4FC9E5 #B64FE5 #E56B4F #7EE54F

split-complementary

#4FC9E5 #E54F7E #E5B64F

monochromatic

#1888A2 #20B5D7 #4FC9E5 #84D9ED #BAEAF5

Accessibility & contrast

On white

1.94

#4FC9E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.82

#4FC9E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FC9E5

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FC9E5	#FFFFFF	#000000	##000000
##4FC9E5	1.00	1.94	10.82	10.82
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.82	21.00	1.00	1.00
##000000	10.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C3E7

Deuteranopia (green-blind)

#A0B3E5

Tritanopia (blue-blind)

#00D3D2

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #4fc9e5;
/* rgb */ color: rgb(79, 201, 229);
/* oklch */ color: oklch(77.9% 0.114 215.8);

Tailwind

colors: {
  custom: {
    50: '#91d9ed',
    500: '#4fc9e5',
    950: '#000000',
  },
}

SCSS

$custom: #4fc9e5;
$custom-light: #91d9ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4fc9e5",
  "rgb": {
    "r": 79,
    "g": 201,
    "b": 229
  },
  "hsl": {
    "h": 191.2,
    "s": 74.257,
    "l": 60.392
  },
  "oklch": {
    "l": 0.77883,
    "c": 0.11359,
    "h": 215.8
  },
  "luminance": 0.49093
}

Semantic roles & 50–950 ramp

primary

#4FC9E5

secondary

#E5B6AB

accent

#340FD6

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #4FC9E5

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

Preview Lab → · Contrast checker → · Palette generator →