#4173BA#4173BA

#4173BA is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.5% C 0.124 H 257.4°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4173BA
RGB	rgb(65, 115, 186)
HSL	hsl(215, 48%, 49%)
HSV	hsv(215, 65%, 73%)
CMYK	cmyk(65.1%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(48.17, 6.06, -42.43)
CIE-LCH	lch(48.17, 42.86, 278.12°)
OKLab	oklab(55.47% -0.027 -0.1206)
OKLCH	oklch(55.47% 0.124 257.4)
XYZ	xyz(17.1705, 16.9288, 48.8076)
Luminance	0.1693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173BA #BA8841

analogous

#41B0BA #4173BA #4C41BA

triadic

#4173BA #BA4173 #73BA41

tetradic

#4173BA #BA41B0 #BA8841 #41BA4C

square

#4173BA #BA41B0 #BA8841 #41BA4C

split-complementary

#4173BA #BA4C41 #B0BA41

monochromatic

#213B5F #31578D #4173BA #6C94CC #9AB5DC

Accessibility & contrast

On white

4.79

#4173BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#4173BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4173BA

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173BA	#FFFFFF	#000000	##FFFFFF
##4173BA	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BD

Deuteranopia (green-blind)

#426DB9

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4173ba;
/* rgb */ color: rgb(65, 115, 186);
/* oklch */ color: oklch(55.5% 0.124 257.4);

Tailwind

colors: {
  custom: {
    50: '#829acf',
    500: '#4173ba',
    950: '#000000',
  },
}

SCSS

$custom: #4173ba;
$custom-light: #829acf;
$custom-dark: #000000;

JSON

{
  "hex": "#4173ba",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 215.207,
    "s": 48.207,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55474,
    "c": 0.12358,
    "h": 257.4
  },
  "luminance": 0.1693
}

Semantic roles & 50–950 ramp

primary

#4173BA

secondary

#C8B08F

accent

#A050D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4173BA

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

Preview Lab → · Contrast checker → · Palette generator →