#4173CE#4173CE

#4173CE is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.7% C 0.151 H 261.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4173CE
RGB	rgb(65, 115, 206)
HSL	hsl(219, 59%, 53%)
HSV	hsv(219, 68%, 81%)
CMYK	cmyk(68.4%, 44.2%, 0%, 19.2%)
CIE-LAB	lab(49.30, 13.16, -52.11)
CIE-LCH	lch(49.30, 53.74, 284.18°)
OKLab	oklab(56.72% -0.0228 -0.149)
OKLCH	oklch(56.72% 0.151 261.3)
XYZ	xyz(19.4473, 17.8395, 60.7990)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173CE #CE9C41

analogous

#41BACE #4173CE #5541CE

triadic

#4173CE #CE4173 #73CE41

tetradic

#4173CE #CE41BA #CE9C41 #41CE55

square

#4173CE #CE41BA #CE9C41 #41CE55

split-complementary

#4173CE #CE5541 #BACE41

monochromatic

#1E3E76 #2B57A7 #4173CE #7297DB #A2BBE7

Accessibility & contrast

On white

4.60

#4173CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4173CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4173CE

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173CE	#FFFFFF	#000000	##FFFFFF
##4173CE	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467CD1

Deuteranopia (green-blind)

#2D6FCC

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4173ce;
/* rgb */ color: rgb(65, 115, 206);
/* oklch */ color: oklch(56.7% 0.151 261.3);

Tailwind

colors: {
  custom: {
    50: '#859add',
    500: '#4173ce',
    950: '#000000',
  },
}

SCSS

$custom: #4173ce;
$custom-light: #859add;
$custom-dark: #000000;

JSON

{
  "hex": "#4173ce",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 206
  },
  "hsl": {
    "h": 218.723,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.56716,
    "c": 0.15073,
    "h": 261.3
  },
  "luminance": 0.17842
}

Semantic roles & 50–950 ramp

primary

#4173CE

secondary

#D4BE97

accent

#AB46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4173CE

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

Preview Lab → · Contrast checker → · Palette generator →