#4040D0#4040D0

#4040D0 is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.2% C 0.214 H 274.5°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#4040D0
RGB	rgb(64, 64, 208)
HSL	hsl(240, 61%, 53%)
HSV	hsv(240, 69%, 82%)
CMYK	cmyk(69.2%, 69.2%, 0%, 18.4%)
CIE-LAB	lab(36.57, 45.55, -73.92)
CIE-LCH	lch(36.57, 86.83, 301.65°)
OKLab	oklab(47.23% 0.0167 -0.2136)
OKLCH	oklch(47.23% 0.214 274.5)
XYZ	xyz(15.3291, 9.3094, 60.6513)
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

#4040D0 #D0D040

analogous

#4088D0 #4040D0 #8840D0

triadic

#4040D0 #D04040 #40D040

tetradic

#4040D0 #D04088 #D0D040 #40D088

square

#4040D0 #D04088 #D0D040 #40D088

split-complementary

#4040D0 #D08840 #88D040

monochromatic

#1E1E78 #2A2AA9 #4040D0 #7171DC #A2A2E8

Accessibility & contrast

On white

7.34

#4040D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4040D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040D0

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040D0	#FFFFFF	#000000	##FFFFFF
##4040D0	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)

#005DD4

Deuteranopia (green-blind)

#004FCD

Tritanopia (blue-blind)

#006783

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4040d0;
/* rgb */ color: rgb(64, 64, 208);
/* oklch */ color: oklch(47.2% 0.214 274.5);

Tailwind

colors: {
  custom: {
    50: '#8876e0',
    500: '#4040d0',
    950: '#000000',
  },
}

SCSS

$custom: #4040d0;
$custom-light: #8876e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4040d0",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 208
  },
  "hsl": {
    "h": 240,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.4723,
    "c": 0.21428,
    "h": 274.5
  },
  "luminance": 0.09311
}

Semantic roles & 50–950 ramp

primary

#4040D0

secondary

#D5D597

accent

#E444E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4040D0

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

Preview Lab → · Contrast checker → · Palette generator →