#4179DD#4179DD

#4179DD is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.0% C 0.164 H 261.0°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#4179DD
RGB	rgb(65, 121, 221)
HSL	hsl(218, 70%, 56%)
HSV	hsv(218, 71%, 87%)
CMYK	cmyk(70.6%, 45.2%, 0%, 13.3%)
CIE-LAB	lab(51.86, 14.81, -56.51)
CIE-LCH	lch(51.86, 58.42, 284.68°)
OKLab	oklab(58.97% -0.0257 -0.1619)
OKLCH	oklch(58.97% 0.164 261)
XYZ	xyz(22.0638, 20.0167, 71.0934)
Luminance	0.2002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4179DD #DDA541

analogous

#41C7DD #4179DD #5741DD

triadic

#4179DD #DD4179 #79DD41

tetradic

#4179DD #DD41C7 #DDA541 #41DD57

square

#4179DD #DD41C7 #DDA541 #41DD57

split-complementary

#4179DD #DD5741 #C7DD41

monochromatic

#19428B #225ABF #4179DD #759EE6 #A9C2F0

Accessibility & contrast

On white

4.20

#4179DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#4179DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4179DD

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4179DD	#FFFFFF	#000000	##000000
##4179DD	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4683E1

Deuteranopia (green-blind)

#2675DB

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4179dd;
/* rgb */ color: rgb(65, 121, 221);
/* oklch */ color: oklch(59.0% 0.164 261.0);

Tailwind

colors: {
  custom: {
    50: '#889fe8',
    500: '#4179dd',
    950: '#000000',
  },
}

SCSS

$custom: #4179dd;
$custom-light: #889fe8;
$custom-dark: #000000;

JSON

{
  "hex": "#4179dd",
  "rgb": {
    "r": 65,
    "g": 121,
    "b": 221
  },
  "hsl": {
    "h": 218.462,
    "s": 69.643,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58972,
    "c": 0.16388,
    "h": 261
  },
  "luminance": 0.20019
}

Semantic roles & 50–950 ramp

primary

#4179DD

secondary

#DDC69D

accent

#AD3BEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4179DD

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

Preview Lab → · Contrast checker → · Palette generator →