#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
RGB	rgb(65, 136, 228)
HSL	hsl(214, 75%, 57%)
HSV	hsv(214, 71%, 89%)
CMYK	cmyk(71.5%, 40.4%, 0%, 10.6%)
CIE-LAB	lab(56.42, 8.14, -53.15)
CIE-LCH	lch(56.42, 53.77, 278.71°)
OKLab	oklab(62.63% -0.0377 -0.1517)
OKLCH	oklch(62.63% 0.156 256.1)
XYZ	xyz(24.9826, 24.3308, 76.7634)
Luminance	0.2433 (WCAG relative)
Temperature	cool
Family	cyan

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
##4188E4	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

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 →