#4163BB#4163BB

#4163BB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.0% C 0.144 H 265.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4163BB
RGB	rgb(65, 99, 187)
HSL	hsl(223, 48%, 49%)
HSV	hsv(223, 65%, 73%)
CMYK	cmyk(65.2%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.70, 16.46, -50.13)
CIE-LCH	lch(43.70, 52.77, 288.18°)
OKLab	oklab(52.05% -0.0107 -0.1434)
OKLCH	oklch(52.05% 0.144 265.7)
XYZ	xyz(15.6083, 13.6339, 48.8131)
Luminance	0.1363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4163BB #BB9941

analogous

#41A0BB #4163BB #5C41BB

triadic

#4163BB #BB4163 #63BB41

tetradic

#4163BB #BB41A0 #BB9941 #41BB5C

square

#4163BB #BB41A0 #BB9941 #41BB5C

split-complementary

#4163BB #BB5C41 #A0BB41

monochromatic

#213360 #314B8E #4163BB #6D88CC #9AADDC

Accessibility & contrast

On white

5.63

#4163BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#4163BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4163BB

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4163BB	#FFFFFF	#000000	##FFFFFF
##4163BB	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376DBE

Deuteranopia (green-blind)

#1F62B9

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4163bb;
/* rgb */ color: rgb(65, 99, 187);
/* oklch */ color: oklch(52.0% 0.144 265.7);

Tailwind

colors: {
  custom: {
    50: '#828ed0',
    500: '#4163bb',
    950: '#000000',
  },
}

SCSS

$custom: #4163bb;
$custom-light: #828ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4163bb",
  "rgb": {
    "r": 65,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 223.279,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52046,
    "c": 0.14383,
    "h": 265.7
  },
  "luminance": 0.13635
}

Semantic roles & 50–950 ramp

primary

#4163BB

secondary

#C8B890

accent

#B250D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4163BB

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

Preview Lab → · Contrast checker → · Palette generator →