#4EB5F1#4EB5F1

#4EB5F1 is a light, vivid cyan. Relative luminance 0.410; OKLCH L 73.8% C 0.128 H 237.7°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX#4EB5F1
RGBrgb(78, 181, 241)
HSLhsl(202, 85%, 63%)
HSVhsv(202, 68%, 95%)
CMYKcmyk(67.6%, 24.9%, 0%, 5.5%)
CIE-LABlab(70.19, -11.29, -38.57)
CIE-LCHlch(70.19, 40.19, 253.69°)
OKLaboklab(73.78% -0.0685 -0.1086)
OKLCHoklch(73.78% 0.128 237.7)
XYZxyz(35.5368, 41.0145, 89.2458)
Luminance0.4102 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4EB5F1 #F18A4E
analogous
#4EF1DC #4EB5F1 #4E63F1
triadic
#4EB5F1 #F14EB5 #B5F14E
tetradic
#4EB5F1 #DC4EF1 #F18A4E #63F14E
square
#4EB5F1 #DC4EF1 #F18A4E #63F14E
split-complementary
#4EB5F1 #F14E63 #F1DC4E
monochromatic
#0E78B6 #159DED #4EB5F1 #87CDF5 #BFE4FA

Accessibility & contrast

On white

2.28
#4EB5F1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.20
#4EB5F1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4EB5F1
9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4EB5F1#FFFFFF#000000##000000
##4EB5F11.002.289.209.20
#FFFFFF2.281.0021.0021.00
#0000009.2021.001.001.00
##0000009.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#99B5F4
Deuteranopia (green-blind)
#83A5F0
Tritanopia (blue-blind)
#00C4C9
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #4eb5f1;
/* rgb */ color: rgb(78, 181, 241);
/* oklch */ color: oklch(73.8% 0.128 237.7);
Tailwind
colors: {
  custom: {
    50: '#91cbf6',
    500: '#4eb5f1',
    950: '#000000',
  },
}
SCSS
$custom: #4eb5f1;
$custom-light: #91cbf6;
$custom-dark: #000000;
JSON
{
  "hex": "#4eb5f1",
  "rgb": {
    "r": 78,
    "g": 181,
    "b": 241
  },
  "hsl": {
    "h": 202.086,
    "s": 85.34,
    "l": 62.549
  },
  "oklch": {
    "l": 0.73777,
    "c": 0.12839,
    "h": 237.7
  },
  "luminance": 0.41018
}

Semantic roles & 50–950 ramp

primary
#4EB5F1
secondary
#EBC6B0
accent
#5504E2
background
#F9FCFF
surface
#F2F8FE
border
#CCD1D6
text
#0E1317
muted
#7E8285

Preview Lab

Preview with #4EB5F1

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

Preview Lab → · Contrast checker → · Palette generator →

#4EB5F1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva