#4188E4#4188E4

#4188E4 is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.6% C 0.156 H 256.1°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX#4188E4
RGBrgb(65, 136, 228)
HSLhsl(214, 75%, 57%)
HSVhsv(214, 71%, 89%)
CMYKcmyk(71.5%, 40.4%, 0%, 10.6%)
CIE-LABlab(56.42, 8.14, -53.15)
CIE-LCHlch(56.42, 53.77, 278.71°)
OKLaboklab(62.63% -0.0377 -0.1517)
OKLCHoklch(62.63% 0.156 256.1)
XYZxyz(24.9826, 24.3308, 76.7634)
Luminance0.2433 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4188E4 #E49D41
analogous
#41D9E4 #4188E4 #4C41E4
triadic
#4188E4 #E44188 #88E441
tetradic
#4188E4 #E441D9 #E49D41 #41E44C
square
#4188E4 #E441D9 #E49D41 #41E44C
split-complementary
#4188E4 #E44C41 #D9E441
monochromatic
#154D95 #1D69CB #4188E4 #77AAEC #ACCBF3

Accessibility & contrast

On white

3.58
#4188E4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.87
#4188E4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4188E4
5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4188E4#FFFFFF#000000##000000
##4188E41.003.585.875.87
#FFFFFF3.581.0021.0021.00
#0000005.8721.001.001.00
##0000005.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D8FE8
Deuteranopia (green-blind)
#4280E2
Tritanopia (blue-blind)
#009EAB
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #4188e4;
/* rgb */ color: rgb(65, 136, 228);
/* oklch */ color: oklch(62.6% 0.156 256.1);
Tailwind
colors: {
  custom: {
    50: '#89aaed',
    500: '#4188e4',
    950: '#000000',
  },
}
SCSS
$custom: #4188e4;
$custom-light: #89aaed;
$custom-dark: #000000;
JSON
{
  "hex": "#4188e4",
  "rgb": {
    "r": 65,
    "g": 136,
    "b": 228
  },
  "hsl": {
    "h": 213.865,
    "s": 75.115,
    "l": 57.451
  },
  "oklch": {
    "l": 0.62631,
    "c": 0.15631,
    "h": 256.1
  },
  "luminance": 0.24334
}

Semantic roles & 50–950 ramp

primary
#4188E4
secondary
#E1C59F
accent
#A036F2
background
#F9FAFE
surface
#F1F4FD
border
#CBCED5
text
#0D0F16
muted
#7E7F84

Preview Lab

Preview with #4188E4

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

Preview Lab → · Contrast checker → · Palette generator →

#4188E4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva