#4040C7#4040C7

#4040C7 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.4% C 0.203 H 275.1°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#4040C7
RGB	rgb(64, 64, 199)
HSL	hsl(240, 55%, 52%)
HSV	hsv(240, 68%, 78%)
CMYK	cmyk(67.8%, 67.8%, 0%, 22%)
CIE-LAB	lab(35.75, 42.58, -70.04)
CIE-LCH	lch(35.75, 81.97, 301.30°)
OKLab	oklab(46.39% 0.0179 -0.2023)
OKLCH	oklch(46.39% 0.203 275.1)
XYZ	xyz(14.2531, 8.8790, 54.9844)
Luminance	0.0888 (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

#4040C7 #C7C740

analogous

#4084C7 #4040C7 #8440C7

triadic

#4040C7 #C74040 #40C740

tetradic

#4040C7 #C74084 #C7C740 #40C784

square

#4040C7 #C74084 #C7C740 #40C784

split-complementary

#4040C7 #C78440 #84C740

monochromatic

#20206D #2E2E9C #4040C7 #6F6FD5 #9F9FE3

Accessibility & contrast

On white

7.56

#4040C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#4040C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040C7

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040C7	#FFFFFF	#000000	##FFFFFF
##4040C7	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACB

Deuteranopia (green-blind)

#004EC4

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4040c7;
/* rgb */ color: rgb(64, 64, 199);
/* oklch */ color: oklch(46.4% 0.203 275.1);

Tailwind

colors: {
  custom: {
    50: '#8676d9',
    500: '#4040c7',
    950: '#000000',
  },
}

SCSS

$custom: #4040c7;
$custom-light: #8676d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4040c7",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 199
  },
  "hsl": {
    "h": 240,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46386,
    "c": 0.20309,
    "h": 275.1
  },
  "luminance": 0.0888
}

Semantic roles & 50–950 ramp

primary

#4040C7

secondary

#CFCF94

accent

#DE4ADE

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4040C7

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

Preview Lab → · Contrast checker → · Palette generator →