#4040C3#4040C3

#4040C3 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 46.0% C 0.198 H 275.3°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#4040C3
RGB	rgb(64, 64, 195)
HSL	hsl(240, 52%, 51%)
HSV	hsv(240, 67%, 76%)
CMYK	cmyk(67.2%, 67.2%, 0%, 23.5%)
CIE-LAB	lab(35.39, 41.25, -68.29)
CIE-LCH	lch(35.39, 79.78, 301.13°)
OKLab	oklab(46.02% 0.0184 -0.1972)
OKLCH	oklch(46.02% 0.198 275.3)
XYZ	xyz(13.7948, 8.6957, 52.5706)
Luminance	0.0870 (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

#4040C3 #C3C340

analogous

#4081C3 #4040C3 #8140C3

triadic

#4040C3 #C34040 #40C340

tetradic

#4040C3 #C34081 #C3C340 #40C381

square

#4040C3 #C34081 #C3C340 #40C381

split-complementary

#4040C3 #C38140 #81C340

monochromatic

#212168 #2F2F97 #4040C3 #6F6FD2 #9D9DE0

Accessibility & contrast

On white

7.67

#4040C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#4040C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040C3

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040C3	#FFFFFF	#000000	##FFFFFF
##4040C3	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C7

Deuteranopia (green-blind)

#004DC1

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4040c3;
/* rgb */ color: rgb(64, 64, 195);
/* oklch */ color: oklch(46.0% 0.198 275.3);

Tailwind

colors: {
  custom: {
    50: '#8575d6',
    500: '#4040c3',
    950: '#000000',
  },
}

SCSS

$custom: #4040c3;
$custom-light: #8575d6;
$custom-dark: #000000;

JSON

{
  "hex": "#4040c3",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 195
  },
  "hsl": {
    "h": 240,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46017,
    "c": 0.19804,
    "h": 275.3
  },
  "luminance": 0.08697
}

Semantic roles & 50–950 ramp

primary

#4040C3

secondary

#CCCC92

accent

#DC4CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4040C3

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

Preview Lab → · Contrast checker → · Palette generator →