#4163BC#4163BC

#4163BC is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.1% C 0.145 H 265.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#4163BC
RGB	rgb(65, 99, 188)
HSL	hsl(223, 49%, 50%)
HSV	hsv(223, 65%, 74%)
CMYK	cmyk(65.4%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(43.77, 16.82, -50.61)
CIE-LCH	lch(43.77, 53.34, 288.38°)
OKLab	oklab(52.11% -0.0105 -0.1448)
OKLCH	oklch(52.11% 0.145 265.8)
XYZ	xyz(15.7158, 13.6769, 49.3789)
Luminance	0.1368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4163BC #BC9A41

analogous

#41A1BC #4163BC #5D41BC

triadic

#4163BC #BC4163 #63BC41

tetradic

#4163BC #BC41A1 #BC9A41 #41BC5D

square

#4163BC #BC41A1 #BC9A41 #41BC5D

split-complementary

#4163BC #BC5D41 #A1BC41

monochromatic

#223361 #314B8F #4163BC #6E88CD #9BADDC

Accessibility & contrast

On white

5.62

#4163BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#4163BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4163BC

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4163BC	#FFFFFF	#000000	##FFFFFF
##4163BC	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366DBF

Deuteranopia (green-blind)

#1D62BA

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4163bc;
/* rgb */ color: rgb(65, 99, 188);
/* oklch */ color: oklch(52.1% 0.145 265.8);

Tailwind

colors: {
  custom: {
    50: '#828ed1',
    500: '#4163bc',
    950: '#000000',
  },
}

SCSS

$custom: #4163bc;
$custom-light: #828ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#4163bc",
  "rgb": {
    "r": 65,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 223.415,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.52114,
    "c": 0.14523,
    "h": 265.8
  },
  "luminance": 0.13678
}

Semantic roles & 50–950 ramp

primary

#4163BC

secondary

#C9B990

accent

#B250D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4163BC

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

Preview Lab → · Contrast checker → · Palette generator →