#4171EA#4171EA

#4171EA is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.2% C 0.191 H 264.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#4171EA
RGB	rgb(65, 113, 234)
HSL	hsl(223, 80%, 59%)
HSV	hsv(223, 72%, 92%)
CMYK	cmyk(72.2%, 51.7%, 0%, 8.2%)
CIE-LAB	lab(50.54, 24.47, -65.95)
CIE-LCH	lch(50.54, 70.34, 290.36°)
OKLab	oklab(58.23% -0.0173 -0.1897)
OKLCH	oklch(58.23% 0.191 264.8)
XYZ	xyz(22.9311, 18.8721, 80.2601)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4171EA #EABA41

analogous

#41C5EA #4171EA #6541EA

triadic

#4171EA #EA4171 #71EA41

tetradic

#4171EA #EA41C5 #EABA41 #41EA65

square

#4171EA #EA41C5 #EABA41 #41EA65

split-complementary

#4171EA #EA6541 #C5EA41

monochromatic

#123A9F #184ED6 #4171EA #789AF0 #AFC3F6

Accessibility & contrast

On white

4.40

#4171EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#4171EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4171EA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4171EA	#FFFFFF	#000000	##000000
##4171EA	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E80EE

Deuteranopia (green-blind)

#0071E8

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4171ea;
/* rgb */ color: rgb(65, 113, 234);
/* oklch */ color: oklch(58.2% 0.191 264.8);

Tailwind

colors: {
  custom: {
    50: '#8b99f1',
    500: '#4171ea',
    950: '#000000',
  },
}

SCSS

$custom: #4171ea;
$custom-light: #8b99f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4171ea",
  "rgb": {
    "r": 65,
    "g": 113,
    "b": 234
  },
  "hsl": {
    "h": 222.959,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5823,
    "c": 0.19053,
    "h": 264.8
  },
  "luminance": 0.18875
}

Semantic roles & 50–950 ramp

primary

#4171EA

secondary

#E5D2A2

accent

#BF31F7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0D17

muted

#7E7E85

Preview Lab

Preview with #4171EA

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

Preview Lab → · Contrast checker → · Palette generator →