#4173C9#4173C9

#4173C9 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.4% C 0.144 H 260.5°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4173C9
RGB	rgb(65, 115, 201)
HSL	hsl(218, 56%, 52%)
HSV	hsv(218, 68%, 79%)
CMYK	cmyk(67.7%, 42.8%, 0%, 21.2%)
CIE-LAB	lab(49.01, 11.37, -49.72)
CIE-LCH	lch(49.01, 51.00, 282.89°)
OKLab	oklab(56.4% -0.0238 -0.142)
OKLCH	oklch(56.4% 0.144 260.5)
XYZ	xyz(18.8496, 17.6004, 57.6509)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173C9 #C99741

analogous

#41B7C9 #4173C9 #5341C9

triadic

#4173C9 #C94173 #73C941

tetradic

#4173C9 #C941B7 #C99741 #41C953

square

#4173C9 #C941B7 #C99741 #41C953

split-complementary

#4173C9 #C95341 #B7C941

monochromatic

#203D70 #2D579F #4173C9 #7196D7 #A0B9E4

Accessibility & contrast

On white

4.65

#4173C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#4173C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4173C9

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173C9	#FFFFFF	#000000	##FFFFFF
##4173C9	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7BCC

Deuteranopia (green-blind)

#346FC7

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4173c9;
/* rgb */ color: rgb(65, 115, 201);
/* oklch */ color: oklch(56.4% 0.144 260.5);

Tailwind

colors: {
  custom: {
    50: '#849ada',
    500: '#4173c9',
    950: '#000000',
  },
}

SCSS

$custom: #4173c9;
$custom-light: #849ada;
$custom-dark: #000000;

JSON

{
  "hex": "#4173c9",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 201
  },
  "hsl": {
    "h": 217.941,
    "s": 55.738,
    "l": 52.157
  },
  "oklch": {
    "l": 0.56395,
    "c": 0.14396,
    "h": 260.5
  },
  "luminance": 0.17602
}

Semantic roles & 50–950 ramp

primary

#4173C9

secondary

#D1BB95

accent

#A849DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4173C9

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

Preview Lab → · Contrast checker → · Palette generator →