#4EC5F9#4EC5F9

#4EC5F9 is a light, vivid cyan. Relative luminance 0.484; OKLCH L 77.8% C 0.128 H 230.6°. Best body text is #000000 at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#4EC5F9
RGB	rgb(78, 197, 249)
HSL	hsl(198, 93%, 64%)
HSV	hsv(198, 69%, 98%)
CMYK	cmyk(68.7%, 20.9%, 0%, 2.4%)
CIE-LAB	lab(75.07, -17.22, -35.31)
CIE-LCH	lch(75.07, 39.29, 244.01°)
OKLab	oklab(77.77% -0.0814 -0.099)
OKLCH	oklch(77.77% 0.128 230.6)
XYZ	xyz(40.2002, 48.3873, 96.8252)
Luminance	0.4839 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4EC5F9 #F9824E

analogous

#4EF9D8 #4EC5F9 #4E70F9

triadic

#4EC5F9 #F94EC5 #C5F94E

tetradic

#4EC5F9 #D84EF9 #F9824E #70F94E

square

#4EC5F9 #D84EF9 #F9824E #70F94E

split-complementary

#4EC5F9 #F94E70 #F9D84E

monochromatic

#078CC6 #13B2F7 #4EC5F9 #89D8FB #C4ECFD

Accessibility & contrast

On white

1.97

#4EC5F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.68

#4EC5F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4EC5F9

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4EC5F9	#FFFFFF	#000000	##000000
##4EC5F9	1.00	1.97	10.68	10.68
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.68	21.00	1.00	1.00
##000000	10.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABC2FC

Deuteranopia (green-blind)

#93B1F8

Tritanopia (blue-blind)

#00D3D6

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #4ec5f9;
/* rgb */ color: rgb(78, 197, 249);
/* oklch */ color: oklch(77.8% 0.128 230.6);

Tailwind

colors: {
  custom: {
    50: '#92d6fb',
    500: '#4ec5f9',
    950: '#000000',
  },
}

SCSS

$custom: #4ec5f9;
$custom-light: #92d6fb;
$custom-dark: #000000;

JSON

{
  "hex": "#4ec5f9",
  "rgb": {
    "r": 78,
    "g": 197,
    "b": 249
  },
  "hsl": {
    "h": 198.246,
    "s": 93.443,
    "l": 64.118
  },
  "oklch": {
    "l": 0.77769,
    "c": 0.1282,
    "h": 230.6
  },
  "luminance": 0.48392
}

Semantic roles & 50–950 ramp

primary

#4EC5F9

secondary

#EFC6B4

accent

#4600E6

background

#F9FDFF

surface

#F2FAFF

border

#CCD3D7

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #4EC5F9

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

Preview Lab → · Contrast checker → · Palette generator →