#4180E3#4180E3

#4180E3 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.8% C 0.164 H 259.2°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4180E3
RGB	rgb(65, 128, 227)
HSL	hsl(217, 74%, 57%)
HSV	hsv(217, 71%, 89%)
CMYK	cmyk(71.4%, 43.6%, 0%, 11%)
CIE-LAB	lab(54.14, 12.65, -56.23)
CIE-LCH	lch(54.14, 57.63, 282.68°)
OKLab	oklab(60.85% -0.0308 -0.1609)
OKLCH	oklch(60.85% 0.164 259.2)
XYZ	xyz(23.7593, 22.1056, 75.6728)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4180E3 #E3A441

analogous

#41D1E3 #4180E3 #5341E3

triadic

#4180E3 #E34180 #80E341

tetradic

#4180E3 #E341D1 #E3A441 #41E353

square

#4180E3 #E341D1 #E3A441 #41E353

split-complementary

#4180E3 #E35341 #D1E341

monochromatic

#164794 #1E60C9 #4180E3 #76A4EB #ACC7F3

Accessibility & contrast

On white

3.87

#4180E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#4180E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4180E3

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4180E3	#FFFFFF	#000000	##000000
##4180E3	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F89E7

Deuteranopia (green-blind)

#307BE1

Tritanopia (blue-blind)

#0097A6

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4180e3;
/* rgb */ color: rgb(65, 128, 227);
/* oklch */ color: oklch(60.8% 0.164 259.2);

Tailwind

colors: {
  custom: {
    50: '#89a4ec',
    500: '#4180e3',
    950: '#000000',
  },
}

SCSS

$custom: #4180e3;
$custom-light: #89a4ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4180e3",
  "rgb": {
    "r": 65,
    "g": 128,
    "b": 227
  },
  "hsl": {
    "h": 216.667,
    "s": 74.312,
    "l": 57.255
  },
  "oklch": {
    "l": 0.60847,
    "c": 0.16382,
    "h": 259.2
  },
  "luminance": 0.22108
}

Semantic roles & 50–950 ramp

primary

#4180E3

secondary

#E1C79F

accent

#A937F1

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4180E3

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

Preview Lab → · Contrast checker → · Palette generator →