#4151CC#4151CC

#4151CC is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.8% C 0.189 H 271.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#4151CC
RGB	rgb(65, 81, 204)
HSL	hsl(233, 58%, 53%)
HSV	hsv(233, 68%, 80%)
CMYK	cmyk(68.1%, 60.3%, 0%, 20%)
CIE-LAB	lab(40.19, 33.97, -65.68)
CIE-LCH	lch(40.19, 73.94, 297.35°)
OKLab	oklab(49.78% 0.0063 -0.1894)
OKLCH	oklch(49.78% 0.189 271.9)
XYZ	xyz(16.0178, 11.3668, 58.4649)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151CC #CCBC41

analogous

#4196CC #4151CC #7741CC

triadic

#4151CC #CC4151 #51CC41

tetradic

#4151CC #CC4196 #CCBC41 #41CC77

square

#4151CC #CC4196 #CCBC41 #41CC77

split-complementary

#4151CC #CC7741 #96CC41

monochromatic

#1F2974 #2C3AA4 #4151CC #717DD9 #A1A9E6

Accessibility & contrast

On white

6.41

#4151CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#4151CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151CC

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151CC	#FFFFFF	#000000	##FFFFFF
##4151CC	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D0

Deuteranopia (green-blind)

#0059CA

Tritanopia (blue-blind)

#007087

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4151cc;
/* rgb */ color: rgb(65, 81, 204);
/* oklch */ color: oklch(49.8% 0.189 271.9);

Tailwind

colors: {
  custom: {
    50: '#8681dc',
    500: '#4151cc',
    950: '#000000',
  },
}

SCSS

$custom: #4151cc;
$custom-light: #8681dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4151cc",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 204
  },
  "hsl": {
    "h": 233.094,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49782,
    "c": 0.18949,
    "h": 271.9
  },
  "luminance": 0.11368
}

Semantic roles & 50–950 ramp

primary

#4151CC

secondary

#D3CC96

accent

#CF47E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #4151CC

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

Preview Lab → · Contrast checker → · Palette generator →