#4151C5#4151C5

#4151C5 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.2% C 0.180 H 272.0°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#4151C5
RGB	rgb(65, 81, 197)
HSL	hsl(233, 53%, 51%)
HSV	hsv(233, 67%, 77%)
CMYK	cmyk(67%, 58.9%, 0%, 22.7%)
CIE-LAB	lab(39.65, 31.53, -62.51)
CIE-LCH	lch(39.65, 70.01, 296.77°)
OKLab	oklab(49.21% 0.0064 -0.1801)
OKLCH	oklch(49.21% 0.18 272)
XYZ	xyz(15.1971, 11.0385, 54.1423)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151C5 #C5B541

analogous

#4193C5 #4151C5 #7341C5

triadic

#4151C5 #C54151 #51C541

tetradic

#4151C5 #C54193 #C5B541 #41C573

square

#4151C5 #C54193 #C5B541 #41C573

split-complementary

#4151C5 #C57341 #93C541

monochromatic

#212A6B #2F3C9A #4151C5 #707CD3 #9FA7E2

Accessibility & contrast

On white

6.55

#4151C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#4151C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151C5

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151C5	#FFFFFF	#000000	##FFFFFF
##4151C5	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C9

Deuteranopia (green-blind)

#0058C3

Tritanopia (blue-blind)

#006E83

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4151c5;
/* rgb */ color: rgb(65, 81, 197);
/* oklch */ color: oklch(49.2% 0.180 272.0);

Tailwind

colors: {
  custom: {
    50: '#8581d7',
    500: '#4151c5',
    950: '#000000',
  },
}

SCSS

$custom: #4151c5;
$custom-light: #8581d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4151c5",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 197
  },
  "hsl": {
    "h": 232.727,
    "s": 53.226,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49206,
    "c": 0.18019,
    "h": 272
  },
  "luminance": 0.1104
}

Semantic roles & 50–950 ramp

primary

#4151C5

secondary

#CEC794

accent

#CB4BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #4151C5

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

Preview Lab → · Contrast checker → · Palette generator →