#4040BD#4040BD

#4040BD is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.190 H 275.7°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#4040BD
RGB	rgb(64, 64, 189)
HSL	hsl(240, 49%, 50%)
HSV	hsv(240, 66%, 74%)
CMYK	cmyk(66.1%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.86, 39.24, -65.64)
CIE-LCH	lch(34.86, 76.48, 300.87°)
OKLab	oklab(45.47% 0.019 -0.1894)
OKLCH	oklch(45.47% 0.19 275.7)
XYZ	xyz(13.1300, 8.4298, 49.0694)
Luminance	0.0843 (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

#4040BD #BDBD40

analogous

#407FBD #4040BD #7F40BD

triadic

#4040BD #BD4040 #40BD40

tetradic

#4040BD #BD407F #BDBD40 #40BD7F

square

#4040BD #BD407F #BDBD40 #40BD7F

split-complementary

#4040BD #BD7F40 #7FBD40

monochromatic

#212162 #31318F #4040BD #6D6DCD #9A9ADD

Accessibility & contrast

On white

7.82

#4040BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#4040BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040BD

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040BD	#FFFFFF	#000000	##FFFFFF
##4040BD	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C1

Deuteranopia (green-blind)

#004CBB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4040bd;
/* rgb */ color: rgb(64, 64, 189);
/* oklch */ color: oklch(45.5% 0.190 275.7);

Tailwind

colors: {
  custom: {
    50: '#8475d2',
    500: '#4040bd',
    950: '#000000',
  },
}

SCSS

$custom: #4040bd;
$custom-light: #8475d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4040bd",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 240,
    "s": 49.407,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45471,
    "c": 0.19037,
    "h": 275.7
  },
  "luminance": 0.08431
}

Semantic roles & 50–950 ramp

primary

#4040BD

secondary

#C9C990

accent

#D94FD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4040BD

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

Preview Lab → · Contrast checker → · Palette generator →