#4173DC#4173DC

#4173DC is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.6% C 0.170 H 263.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4173DC
RGB	rgb(65, 115, 220)
HSL	hsl(221, 69%, 56%)
HSV	hsv(221, 70%, 86%)
CMYK	cmyk(70.5%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(50.16, 18.18, -58.68)
CIE-LCH	lch(50.16, 61.43, 287.22°)
OKLab	oklab(57.65% -0.0206 -0.1683)
OKLCH	oklch(57.65% 0.17 263)
XYZ	xyz(21.2244, 18.5504, 70.1583)
Luminance	0.1855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173DC #DCAA41

analogous

#41C0DC #4173DC #5C41DC

triadic

#4173DC #DC4173 #73DC41

tetradic

#4173DC #DC41C0 #DCAA41 #41DC5C

square

#4173DC #DC41C0 #DCAA41 #41DC5C

split-complementary

#4173DC #DC5C41 #C0DC41

monochromatic

#193D89 #2355BD #4173DC #7599E6 #A8BFEF

Accessibility & contrast

On white

4.46

#4173DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#4173DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4173DC

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173DC	#FFFFFF	#000000	##000000
##4173DC	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7FE0

Deuteranopia (green-blind)

#0C71DA

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4173dc;
/* rgb */ color: rgb(65, 115, 220);
/* oklch */ color: oklch(57.6% 0.170 263.0);

Tailwind

colors: {
  custom: {
    50: '#889ae7',
    500: '#4173dc',
    950: '#000000',
  },
}

SCSS

$custom: #4173dc;
$custom-light: #889ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#4173dc",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 220.645,
    "s": 68.889,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57649,
    "c": 0.16959,
    "h": 263
  },
  "luminance": 0.18553
}

Semantic roles & 50–950 ramp

primary

#4173DC

secondary

#DDC89C

accent

#B33CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4173DC

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

Preview Lab → · Contrast checker → · Palette generator →