#4173E9#4173E9

#4173E9 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.6% C 0.187 H 264.2°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4173E9
RGB	rgb(65, 115, 233)
HSL	hsl(222, 79%, 58%)
HSV	hsv(222, 72%, 91%)
CMYK	cmyk(72.1%, 50.6%, 0%, 8.6%)
CIE-LAB	lab(51.00, 22.86, -64.64)
CIE-LCH	lch(51.00, 68.57, 289.47°)
OKLab	oklab(58.56% -0.019 -0.1859)
OKLCH	oklch(58.56% 0.187 264.2)
XYZ	xyz(23.0135, 19.2660, 79.5808)
Luminance	0.1927 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173E9 #E9B741

analogous

#41C7E9 #4173E9 #6341E9

triadic

#4173E9 #E94173 #73E941

tetradic

#4173E9 #E941C7 #E9B741 #41E963

square

#4173E9 #E941C7 #E9B741 #41E963

split-complementary

#4173E9 #E96341 #C7E941

monochromatic

#123C9D #1950D4 #4173E9 #789BEF #AFC4F6

Accessibility & contrast

On white

4.33

#4173E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#4173E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4173E9

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173E9	#FFFFFF	#000000	##000000
##4173E9	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2882ED

Deuteranopia (green-blind)

#0072E7

Tritanopia (blue-blind)

#008FA3

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4173e9;
/* rgb */ color: rgb(65, 115, 233);
/* oklch */ color: oklch(58.6% 0.187 264.2);

Tailwind

colors: {
  custom: {
    50: '#8a9af1',
    500: '#4173e9',
    950: '#000000',
  },
}

SCSS

$custom: #4173e9;
$custom-light: #8a9af1;
$custom-dark: #000000;

JSON

{
  "hex": "#4173e9",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 233
  },
  "hsl": {
    "h": 222.143,
    "s": 79.245,
    "l": 58.431
  },
  "oklch": {
    "l": 0.58558,
    "c": 0.18685,
    "h": 264.2
  },
  "luminance": 0.19268
}

Semantic roles & 50–950 ramp

primary

#4173E9

secondary

#E4D0A2

accent

#BB32F6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4173E9

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

Preview Lab → · Contrast checker → · Palette generator →