#4151C7#4151C7

#4151C7 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.4% C 0.183 H 272.0°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4151C7
RGB	rgb(65, 81, 199)
HSL	hsl(233, 54%, 52%)
HSV	hsv(233, 67%, 78%)
CMYK	cmyk(67.3%, 59.3%, 0%, 22%)
CIE-LAB	lab(39.80, 32.23, -63.42)
CIE-LCH	lch(39.80, 71.14, 296.94°)
OKLab	oklab(49.37% 0.0064 -0.1827)
OKLCH	oklch(49.37% 0.183 272)
XYZ	xyz(15.4277, 11.1308, 55.3572)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151C7 #C7B741

analogous

#4194C7 #4151C7 #7441C7

triadic

#4151C7 #C74151 #51C741

tetradic

#4151C7 #C74194 #C7B741 #41C774

square

#4151C7 #C74194 #C7B741 #41C774

split-complementary

#4151C7 #C77441 #94C741

monochromatic

#20296D #2E3B9D #4151C7 #707CD5 #A0A8E3

Accessibility & contrast

On white

6.51

#4151C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#4151C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151C7

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151C7	#FFFFFF	#000000	##FFFFFF
##4151C7	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CB

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#006E84

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4151c7;
/* rgb */ color: rgb(65, 81, 199);
/* oklch */ color: oklch(49.4% 0.183 272.0);

Tailwind

colors: {
  custom: {
    50: '#8581d9',
    500: '#4151c7',
    950: '#000000',
  },
}

SCSS

$custom: #4151c7;
$custom-light: #8581d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4151c7",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 199
  },
  "hsl": {
    "h": 232.836,
    "s": 54.472,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49369,
    "c": 0.18286,
    "h": 272
  },
  "luminance": 0.11132
}

Semantic roles & 50–950 ramp

primary

#4151C7

secondary

#CFC895

accent

#CC4ADE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #4151C7

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

Preview Lab → · Contrast checker → · Palette generator →