#4148BB#4148BB

#4148BB is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.7% C 0.178 H 274.5°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#4148BB
RGB	rgb(65, 72, 187)
HSL	hsl(237, 48%, 49%)
HSV	hsv(237, 65%, 73%)
CMYK	cmyk(65.2%, 61.5%, 0%, 26.7%)
CIE-LAB	lab(36.64, 33.75, -61.56)
CIE-LCH	lch(36.64, 70.20, 298.73°)
OKLab	oklab(46.74% 0.014 -0.1774)
OKLCH	oklch(46.74% 0.178 274.5)
XYZ	xyz(13.4640, 9.3452, 48.0983)
Luminance	0.0935 (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

#4148BB #BBB441

analogous

#4185BB #4148BB #7741BB

triadic

#4148BB #BB4148 #48BB41

tetradic

#4148BB #BB4185 #BBB441 #41BB77

square

#4148BB #BB4185 #BBB441 #41BB77

split-complementary

#4148BB #BB7741 #85BB41

monochromatic

#212560 #31378E #4148BB #6D72CC #9A9EDC

Accessibility & contrast

On white

7.32

#4148BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#4148BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4148BB

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148BB	#FFFFFF	#000000	##FFFFFF
##4148BB	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBF

Deuteranopia (green-blind)

#0051B9

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4148bb;
/* rgb */ color: rgb(65, 72, 187);
/* oklch */ color: oklch(46.7% 0.178 274.5);

Tailwind

colors: {
  custom: {
    50: '#847bd0',
    500: '#4148bb',
    950: '#000000',
  },
}

SCSS

$custom: #4148bb;
$custom-light: #847bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4148bb",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 187
  },
  "hsl": {
    "h": 236.557,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.46737,
    "c": 0.17792,
    "h": 274.5
  },
  "luminance": 0.09346
}

Semantic roles & 50–950 ramp

primary

#4148BB

secondary

#C8C590

accent

#D050D8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4148BB

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

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