#4173BE#4173BE

#4173BE is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.7% C 0.129 H 258.3°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4173BE
RGB	rgb(65, 115, 190)
HSL	hsl(216, 49%, 50%)
HSV	hsv(216, 66%, 75%)
CMYK	cmyk(65.8%, 39.5%, 0%, 25.5%)
CIE-LAB	lab(48.39, 7.47, -44.39)
CIE-LCH	lch(48.39, 45.01, 279.55°)
OKLab	oklab(55.71% -0.0261 -0.1263)
OKLCH	oklch(55.71% 0.129 258.3)
XYZ	xyz(17.6016, 17.1013, 51.0785)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173BE #BE8C41

analogous

#41B2BE #4173BE #4D41BE

triadic

#4173BE #BE4173 #73BE41

tetradic

#4173BE #BE41B2 #BE8C41 #41BE4D

square

#4173BE #BE41B2 #BE8C41 #41BE4D

split-complementary

#4173BE #BE4D41 #B2BE41

monochromatic

#223C63 #315790 #4173BE #6F95CE #9CB6DD

Accessibility & contrast

On white

4.75

#4173BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4173BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4173BE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173BE	#FFFFFF	#000000	##FFFFFF
##4173BE	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5179C1

Deuteranopia (green-blind)

#3F6EBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4173be;
/* rgb */ color: rgb(65, 115, 190);
/* oklch */ color: oklch(55.7% 0.129 258.3);

Tailwind

colors: {
  custom: {
    50: '#829ad2',
    500: '#4173be',
    950: '#000000',
  },
}

SCSS

$custom: #4173be;
$custom-light: #829ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#4173be",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 190
  },
  "hsl": {
    "h": 216,
    "s": 49.02,
    "l": 50
  },
  "oklch": {
    "l": 0.55713,
    "c": 0.129,
    "h": 258.3
  },
  "luminance": 0.17103
}

Semantic roles & 50–950 ramp

primary

#4173BE

secondary

#C9B391

accent

#A24FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4173BE

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

Preview Lab → · Contrast checker → · Palette generator →