#4148BC#4148BC

#4148BC is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.8% C 0.179 H 274.5°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#4148BC
RGB	rgb(65, 72, 188)
HSL	hsl(237, 49%, 50%)
HSV	hsv(237, 65%, 74%)
CMYK	cmyk(65.4%, 61.7%, 0%, 26.3%)
CIE-LAB	lab(36.72, 34.09, -62.02)
CIE-LCH	lch(36.72, 70.77, 298.80°)
OKLab	oklab(46.82% 0.014 -0.1787)
OKLCH	oklch(46.82% 0.179 274.5)
XYZ	xyz(13.5714, 9.3882, 48.6641)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4148BC #BCB541

analogous

#4186BC #4148BC #7741BC

triadic

#4148BC #BC4148 #48BC41

tetradic

#4148BC #BC4186 #BCB541 #41BC77

square

#4148BC #BC4186 #BCB541 #41BC77

split-complementary

#4148BC #BC7741 #86BC41

monochromatic

#222561 #31378F #4148BC #6E73CD #9B9FDC

Accessibility & contrast

On white

7.30

#4148BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#4148BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4148BC

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148BC	#FFFFFF	#000000	##FFFFFF
##4148BC	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC0

Deuteranopia (green-blind)

#0051BA

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4148bc;
/* rgb */ color: rgb(65, 72, 188);
/* oklch */ color: oklch(46.8% 0.179 274.5);

Tailwind

colors: {
  custom: {
    50: '#847bd1',
    500: '#4148bc',
    950: '#000000',
  },
}

SCSS

$custom: #4148bc;
$custom-light: #847bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4148bc",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 188
  },
  "hsl": {
    "h": 236.585,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.46822,
    "c": 0.17925,
    "h": 274.5
  },
  "luminance": 0.09389
}

Semantic roles & 50–950 ramp

primary

#4148BC

secondary

#C9C590

accent

#D050D8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #4148BC

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

Preview Lab → · Contrast checker → · Palette generator →