#4040DD#4040DD

#4040DD is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.5% C 0.230 H 273.7°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#4040DD
RGB	rgb(64, 64, 221)
HSL	hsl(240, 70%, 56%)
HSV	hsv(240, 71%, 87%)
CMYK	cmyk(71%, 71%, 0%, 13.3%)
CIE-LAB	lab(37.80, 49.79, -79.38)
CIE-LCH	lch(37.80, 93.71, 302.10°)
OKLab	oklab(48.48% 0.0148 -0.2296)
OKLCH	oklch(48.48% 0.23 273.7)
XYZ	xyz(16.9945, 9.9756, 69.4224)
Luminance	0.0998 (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

#4040DD #DDDD40

analogous

#408EDD #4040DD #8E40DD

triadic

#4040DD #DD4040 #40DD40

tetradic

#4040DD #DD408E #DDDD40 #40DD8E

square

#4040DD #DD408E #DDDD40 #40DD8E

split-complementary

#4040DD #DD8E40 #8EDD40

monochromatic

#19198A #2222BE #4040DD #7474E6 #A8A8EF

Accessibility & contrast

On white

7.01

#4040DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#4040DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4040DD

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040DD	#FFFFFF	#000000	##FFFFFF
##4040DD	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E2

Deuteranopia (green-blind)

#0051DA

Tritanopia (blue-blind)

#006C8A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4040dd;
/* rgb */ color: rgb(64, 64, 221);
/* oklch */ color: oklch(48.5% 0.230 273.7);

Tailwind

colors: {
  custom: {
    50: '#8b76e9',
    500: '#4040dd',
    950: '#000000',
  },
}

SCSS

$custom: #4040dd;
$custom-light: #8b76e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4040dd",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 221
  },
  "hsl": {
    "h": 240,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48478,
    "c": 0.23006,
    "h": 273.7
  },
  "luminance": 0.09977
}

Semantic roles & 50–950 ramp

primary

#4040DD

secondary

#DDDD9C

accent

#ED3BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4040DD

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

Preview Lab → · Contrast checker → · Palette generator →