#4040C8#4040C8

#4040C8 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.5% C 0.204 H 275.0°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#4040C8
RGB	rgb(64, 64, 200)
HSL	hsl(240, 55%, 52%)
HSV	hsv(240, 68%, 78%)
CMYK	cmyk(68%, 68%, 0%, 21.6%)
CIE-LAB	lab(35.84, 42.91, -70.48)
CIE-LCH	lch(35.84, 82.51, 301.34°)
OKLab	oklab(46.48% 0.0177 -0.2036)
OKLCH	oklch(46.48% 0.204 275)
XYZ	xyz(14.3696, 8.9256, 55.5979)
Luminance	0.0893 (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

#4040C8 #C8C840

analogous

#4084C8 #4040C8 #8440C8

triadic

#4040C8 #C84040 #40C840

tetradic

#4040C8 #C84084 #C8C840 #40C884

square

#4040C8 #C84084 #C8C840 #40C884

split-complementary

#4040C8 #C88440 #84C840

monochromatic

#20206E #2D2D9D #4040C8 #7070D6 #9F9FE3

Accessibility & contrast

On white

7.54

#4040C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#4040C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040C8

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040C8	#FFFFFF	#000000	##FFFFFF
##4040C8	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCC

Deuteranopia (green-blind)

#004EC5

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4040c8;
/* rgb */ color: rgb(64, 64, 200);
/* oklch */ color: oklch(46.5% 0.204 275.0);

Tailwind

colors: {
  custom: {
    50: '#8676da',
    500: '#4040c8',
    950: '#000000',
  },
}

SCSS

$custom: #4040c8;
$custom-light: #8676da;
$custom-dark: #000000;

JSON

{
  "hex": "#4040c8",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 200
  },
  "hsl": {
    "h": 240,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46479,
    "c": 0.20434,
    "h": 275
  },
  "luminance": 0.08927
}

Semantic roles & 50–950 ramp

primary

#4040C8

secondary

#D0D094

accent

#DF49DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4040C8

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

Preview Lab → · Contrast checker → · Palette generator →