#4173EA#4173EA

#4173EA is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.6% C 0.188 H 264.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4173EA
RGB	rgb(65, 115, 234)
HSL	hsl(222, 80%, 59%)
HSV	hsv(222, 72%, 92%)
CMYK	cmyk(72.2%, 50.9%, 0%, 8.2%)
CIE-LAB	lab(51.06, 23.22, -65.10)
CIE-LCH	lch(51.06, 69.11, 289.63°)
OKLab	oklab(58.63% -0.0189 -0.1872)
OKLCH	oklch(58.63% 0.188 264.2)
XYZ	xyz(23.1567, 19.3233, 80.3353)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173EA #EAB841

analogous

#41C7EA #4173EA #6341EA

triadic

#4173EA #EA4173 #73EA41

tetradic

#4173EA #EA41C7 #EAB841 #41EA63

square

#4173EA #EA41C7 #EAB841 #41EA63

split-complementary

#4173EA #EA6341 #C7EA41

monochromatic

#123B9F #1850D6 #4173EA #789CF0 #AFC4F6

Accessibility & contrast

On white

4.32

#4173EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#4173EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4173EA

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173EA	#FFFFFF	#000000	##000000
##4173EA	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2782EE

Deuteranopia (green-blind)

#0072E8

Tritanopia (blue-blind)

#0090A4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4173ea;
/* rgb */ color: rgb(65, 115, 234);
/* oklch */ color: oklch(58.6% 0.188 264.2);

Tailwind

colors: {
  custom: {
    50: '#8a9af1',
    500: '#4173ea',
    950: '#000000',
  },
}

SCSS

$custom: #4173ea;
$custom-light: #8a9af1;
$custom-dark: #000000;

JSON

{
  "hex": "#4173ea",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 234
  },
  "hsl": {
    "h": 222.249,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5863,
    "c": 0.18816,
    "h": 264.2
  },
  "luminance": 0.19326
}

Semantic roles & 50–950 ramp

primary

#4173EA

secondary

#E5D1A2

accent

#BC31F7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4173EA

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

Preview Lab → · Contrast checker → · Palette generator →