#4163CB#4163CB

#4163CB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.2% C 0.166 H 267.0°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4163CB
RGB	rgb(65, 99, 203)
HSL	hsl(225, 57%, 53%)
HSV	hsv(225, 68%, 80%)
CMYK	cmyk(68%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(44.74, 22.18, -57.72)
CIE-LCH	lch(44.74, 61.83, 291.02°)
OKLab	oklab(53.17% -0.0087 -0.1657)
OKLCH	oklch(53.17% 0.166 267)
XYZ	xyz(17.4176, 14.3576, 58.3417)
Luminance	0.1436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4163CB #CBA941

analogous

#41A8CB #4163CB #6441CB

triadic

#4163CB #CB4163 #63CB41

tetradic

#4163CB #CB41A8 #CBA941 #41CB64

square

#4163CB #CB41A8 #CBA941 #41CB64

split-complementary

#4163CB #CB6441 #A8CB41

monochromatic

#1F3472 #2C49A2 #4163CB #718AD8 #A1B2E5

Accessibility & contrast

On white

5.42

#4163CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#4163CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4163CB

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4163CB	#FFFFFF	#000000	##FFFFFF
##4163CB	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2370CF

Deuteranopia (green-blind)

#0064C9

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4163cb;
/* rgb */ color: rgb(65, 99, 203);
/* oklch */ color: oklch(53.2% 0.166 267.0);

Tailwind

colors: {
  custom: {
    50: '#858edb',
    500: '#4163cb',
    950: '#000000',
  },
}

SCSS

$custom: #4163cb;
$custom-light: #858edb;
$custom-dark: #000000;

JSON

{
  "hex": "#4163cb",
  "rgb": {
    "r": 65,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 225.217,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.53169,
    "c": 0.16598,
    "h": 267
  },
  "luminance": 0.14359
}

Semantic roles & 50–950 ramp

primary

#4163CB

secondary

#D2C396

accent

#BB48E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4163CB

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

Preview Lab → · Contrast checker → · Palette generator →