#4048CB#4048CB

#4048CB is a mid, vivid blue. Relative luminance 0.100; OKLCH L 48.1% C 0.199 H 273.4°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#4048CB
RGB	rgb(64, 72, 203)
HSL	hsl(237, 57%, 52%)
HSV	hsv(237, 68%, 80%)
CMYK	cmyk(68.5%, 64.5%, 0%, 20.4%)
CIE-LAB	lab(37.91, 39.09, -68.83)
CIE-LCH	lch(37.91, 79.16, 299.59°)
OKLab	oklab(48.06% 0.012 -0.1987)
OKLCH	oklch(48.06% 0.199 273.4)
XYZ	xyz(15.2076, 10.0351, 57.6239)
Luminance	0.1004 (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

#4048CB #CBC340

analogous

#408DCB #4048CB #7E40CB

triadic

#4048CB #CB4048 #48CB40

tetradic

#4048CB #CB408D #CBC340 #40CB7E

square

#4048CB #CB408D #CBC340 #40CB7E

split-complementary

#4048CB #CB7E40 #8DCB40

monochromatic

#1F2472 #2C33A2 #4048CB #7076D8 #A0A4E5

Accessibility & contrast

On white

6.98

#4048CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#4048CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4048CB

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4048CB	#FFFFFF	#000000	##FFFFFF
##4048CB	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060CF

Deuteranopia (green-blind)

#0053C8

Tritanopia (blue-blind)

#006A83

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4048cb;
/* rgb */ color: rgb(64, 72, 203);
/* oklch */ color: oklch(48.1% 0.199 273.4);

Tailwind

colors: {
  custom: {
    50: '#867bdc',
    500: '#4048cb',
    950: '#000000',
  },
}

SCSS

$custom: #4048cb;
$custom-light: #867bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4048cb",
  "rgb": {
    "r": 64,
    "g": 72,
    "b": 203
  },
  "hsl": {
    "h": 236.547,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.4806,
    "c": 0.1991,
    "h": 273.4
  },
  "luminance": 0.10037
}

Semantic roles & 50–950 ramp

primary

#4048CB

secondary

#D2CE95

accent

#D847E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4048CB

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

Preview Lab → · Contrast checker → · Palette generator →