#4FC9F4#4FC9F4
#4FC9F4 is a light, vivid cyan. Relative luminance 0.500; OKLCH L 78.5% C 0.123 H 225.2°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #4FC9F4 |
|---|---|
| RGB | rgb(79, 201, 244) |
| HSL | hsl(196, 88%, 63%) |
| HSV | hsv(196, 68%, 96%) |
| CMYK | cmyk(67.6%, 17.6%, 0%, 4.3%) |
| CIE-LAB | lab(76.05, -20.71, -31.12) |
| CIE-LCH | lch(76.05, 37.38, 236.36°) |
| OKLab | oklab(78.5% -0.0865 -0.087) |
| OKLCH | oklch(78.5% 0.123 225.2) |
| XYZ | xyz(40.4336, 49.9627, 93.0832) |
| Luminance | 0.4997 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Bright Sky Blue
#02CCFE
ΔE00 2.31
Lightblue (survey)
#7BC8F6
ΔE00 5.22
Sky Blue
#87CEEB
ΔE00 5.23
Baby Blue
#89CFF0
ΔE00 5.29
Deepskyblue
#00BFFF
ΔE00 5.32
Neon Blue
#04D9FF
ΔE00 5.51
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4FC9F4 #F47A4F
analogous
#4FF4CC #4FC9F4 #4F76F4
triadic
#4FC9F4 #F44FC9 #C9F44F
tetradic
#4FC9F4 #CC4FF4 #F47A4F #76F44F
square
#4FC9F4 #CC4FF4 #F47A4F #76F44F
split-complementary
#4FC9F4 #F44F76 #F4CC4F
monochromatic
#0C8FBD #15B7F0 #4FC9F4 #89DBF8 #C2ECFB
Accessibility & contrast
On white
1.91
#4FC9F4 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.99
#4FC9F4 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #4FC9F4
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4FC9F4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4FC9F4 | 1.00 | 1.91 | 10.99 | 10.99 |
| #FFFFFF | 1.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B1C5F6
Deuteranopia (green-blind)
#9AB4F4
Tritanopia (blue-blind)
#00D6D7
Achromatopsia (no color)
#BBBBBB
Design tokens & code
CSS
--color: #4fc9f4; /* rgb */ color: rgb(79, 201, 244); /* oklch */ color: oklch(78.5% 0.123 225.2);
Tailwind
colors: {
custom: {
50: '#92d9f8',
500: '#4fc9f4',
950: '#000000',
},
}SCSS
$custom: #4fc9f4; $custom-light: #92d9f8; $custom-dark: #000000;
JSON
{
"hex": "#4fc9f4",
"rgb": {
"r": 79,
"g": 201,
"b": 244
},
"hsl": {
"h": 195.636,
"s": 88.235,
"l": 63.333
},
"oklch": {
"l": 0.78495,
"c": 0.1227,
"h": 225.2
},
"luminance": 0.49967
}Semantic roles & 50–950 ramp
primary
#4FC9F4
secondary
#EDC1B2
accent
#3C01E5
background
#F9FDFF
surface
#F2FAFE
border
#CCD3D6
text
#0E1417
muted
#7E8385