#4048DB#4048DB

#4048DB is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 49.5% C 0.219 H 272.8°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#4048DB
RGB	rgb(64, 72, 219)
HSL	hsl(237, 68%, 55%)
HSV	hsv(237, 71%, 86%)
CMYK	cmyk(70.8%, 67.1%, 0%, 14.1%)
CIE-LAB	lab(39.31, 44.50, -75.76)
CIE-LCH	lch(39.31, 87.86, 300.43°)
OKLab	oklab(49.51% 0.0105 -0.219)
OKLCH	oklch(49.51% 0.219 272.8)
XYZ	xyz(17.2136, 10.8375, 68.1888)
Luminance	0.1084 (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

#4048DB #DBD340

analogous

#4096DB #4048DB #8540DB

triadic

#4048DB #DB4048 #48DB40

tetradic

#4048DB #DB4096 #DBD340 #40DB85

square

#4048DB #DB4096 #DBD340 #40DB85

split-complementary

#4048DB #DB8540 #96DB40

monochromatic

#191F87 #232BBB #4048DB #7379E5 #A7ABEE

Accessibility & contrast

On white

6.63

#4048DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#4048DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4048DB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4048DB	#FFFFFF	#000000	##FFFFFF
##4048DB	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E0

Deuteranopia (green-blind)

#0055D8

Tritanopia (blue-blind)

#00708C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4048db;
/* rgb */ color: rgb(64, 72, 219);
/* oklch */ color: oklch(49.5% 0.219 272.8);

Tailwind

colors: {
  custom: {
    50: '#8a7be7',
    500: '#4048db',
    950: '#000000',
  },
}

SCSS

$custom: #4048db;
$custom-light: #8a7be7;
$custom-dark: #000000;

JSON

{
  "hex": "#4048db",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 219
  },
  "hsl": {
    "h": 236.903,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.49507,
    "c": 0.21926,
    "h": 272.8
  },
  "luminance": 0.10839
}

Semantic roles & 50–950 ramp

primary

#4048DB

secondary

#DCD89B

accent

#E23DEB

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4048DB

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

Preview Lab → · Contrast checker → · Palette generator →