#4048BB#4048BB

#4048BB is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.7% C 0.178 H 274.1°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#4048BB
RGB	rgb(64, 72, 187)
HSL	hsl(236, 49%, 49%)
HSV	hsv(236, 66%, 73%)
CMYK	cmyk(65.8%, 61.5%, 0%, 26.7%)
CIE-LAB	lab(36.58, 33.60, -61.67)
CIE-LCH	lch(36.58, 70.22, 298.58°)
OKLab	oklab(46.67% 0.0129 -0.1777)
OKLCH	oklch(46.67% 0.178 274.1)
XYZ	xyz(13.3984, 9.3114, 48.0953)
Luminance	0.0931 (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

#4048BB #BBB340

analogous

#4085BB #4048BB #7640BB

triadic

#4048BB #BB4048 #48BB40

tetradic

#4048BB #BB4085 #BBB340 #40BB76

square

#4048BB #BB4085 #BBB340 #40BB76

split-complementary

#4048BB #BB7640 #85BB40

monochromatic

#212560 #30368D #4048BB #6C72CD #999EDC

Accessibility & contrast

On white

7.34

#4048BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4048BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4048BB

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4048BB	#FFFFFF	#000000	##FFFFFF
##4048BB	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	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: #4048bb;
/* rgb */ color: rgb(64, 72, 187);
/* oklch */ color: oklch(46.7% 0.178 274.1);

Tailwind

colors: {
  custom: {
    50: '#837bd0',
    500: '#4048bb',
    950: '#000000',
  },
}

SCSS

$custom: #4048bb;
$custom-light: #837bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4048bb",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 187
  },
  "hsl": {
    "h": 236.098,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46674,
    "c": 0.17817,
    "h": 274.1
  },
  "luminance": 0.09313
}

Semantic roles & 50–950 ramp

primary

#4048BB

secondary

#C8C48F

accent

#D04FD9

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4048BB

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

Preview Lab → · Contrast checker → · Palette generator →