#4151DF#4151DF

#4151DF is a mid, highly saturated blue. Relative luminance 0.123; OKLCH L 51.4% C 0.214 H 271.5°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#4151DF
RGB	rgb(65, 81, 223)
HSL	hsl(234, 71%, 56%)
HSV	hsv(234, 71%, 87%)
CMYK	cmyk(70.9%, 63.7%, 0%, 12.5%)
CIE-LAB	lab(41.74, 40.55, -74.04)
CIE-LCH	lch(41.74, 84.42, 298.70°)
OKLab	oklab(51.41% 0.0056 -0.2139)
OKLCH	oklch(51.41% 0.214 271.5)
XYZ	xyz(18.4372, 12.3345, 71.2069)
Luminance	0.1234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151DF #DFCF41

analogous

#41A0DF #4151DF #8041DF

triadic

#4151DF #DF4151 #51DF41

tetradic

#4151DF #DF41A0 #DFCF41 #41DF80

square

#4151DF #DF41A0 #DFCF41 #41DF80

split-complementary

#4151DF #DF8041 #A0DF41

monochromatic

#18248E #2131C2 #4151DF #7581E8 #AAB1F1

Accessibility & contrast

On white

6.06

#4151DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#4151DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151DF

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151DF	#FFFFFF	#000000	##FFFFFF
##4151DF	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AE4

Deuteranopia (green-blind)

#005BDC

Tritanopia (blue-blind)

#007691

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4151df;
/* rgb */ color: rgb(65, 81, 223);
/* oklch */ color: oklch(51.4% 0.214 271.5);

Tailwind

colors: {
  custom: {
    50: '#8a82ea',
    500: '#4151df',
    950: '#000000',
  },
}

SCSS

$custom: #4151df;
$custom-light: #8a82ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4151df",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 223
  },
  "hsl": {
    "h": 233.924,
    "s": 71.171,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51405,
    "c": 0.21399,
    "h": 271.5
  },
  "luminance": 0.12336
}

Semantic roles & 50–950 ramp

primary

#4151DF

secondary

#DED89D

accent

#DC3AEE

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #4151DF

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

Preview Lab → · Contrast checker → · Palette generator →