#4040D1#4040D1

#4040D1 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.3% C 0.216 H 274.4°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#4040D1
RGB	rgb(64, 64, 209)
HSL	hsl(240, 61%, 54%)
HSV	hsv(240, 69%, 82%)
CMYK	cmyk(69.4%, 69.4%, 0%, 18%)
CIE-LAB	lab(36.67, 45.88, -74.34)
CIE-LCH	lch(36.67, 87.36, 301.68°)
OKLab	oklab(47.33% 0.0166 -0.2149)
OKLCH	oklch(47.33% 0.216 274.4)
XYZ	xyz(15.4526, 9.3588, 61.3013)
Luminance	0.0936 (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

#4040D1 #D1D140

analogous

#4088D1 #4040D1 #8840D1

triadic

#4040D1 #D14040 #40D140

tetradic

#4040D1 #D14088 #D1D140 #40D188

square

#4040D1 #D14088 #D1D140 #40D188

split-complementary

#4040D1 #D18840 #88D140

monochromatic

#1D1D79 #2929AB #4040D1 #7171DD #A3A3E9

Accessibility & contrast

On white

7.31

#4040D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#4040D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040D1

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040D1	#FFFFFF	#000000	##FFFFFF
##4040D1	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD5

Deuteranopia (green-blind)

#004FCE

Tritanopia (blue-blind)

#006884

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4040d1;
/* rgb */ color: rgb(64, 64, 209);
/* oklch */ color: oklch(47.3% 0.216 274.4);

Tailwind

colors: {
  custom: {
    50: '#8876e0',
    500: '#4040d1',
    950: '#000000',
  },
}

SCSS

$custom: #4040d1;
$custom-light: #8876e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4040d1",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 209
  },
  "hsl": {
    "h": 240,
    "s": 61.181,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47325,
    "c": 0.21551,
    "h": 274.4
  },
  "luminance": 0.0936
}

Semantic roles & 50–950 ramp

primary

#4040D1

secondary

#D5D597

accent

#E444E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4040D1

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

Preview Lab → · Contrast checker → · Palette generator →