#4040D3#4040D3

#4040D3 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.5% C 0.218 H 274.3°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#4040D3
RGB	rgb(64, 64, 211)
HSL	hsl(240, 63%, 54%)
HSV	hsv(240, 70%, 83%)
CMYK	cmyk(69.7%, 69.7%, 0%, 17.3%)
CIE-LAB	lab(36.85, 46.54, -75.19)
CIE-LCH	lch(36.85, 88.43, 301.76°)
OKLab	oklab(47.52% 0.0163 -0.2173)
OKLCH	oklch(47.52% 0.218 274.3)
XYZ	xyz(15.7017, 9.4584, 62.6136)
Luminance	0.0946 (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

#4040D3 #D3D340

analogous

#408AD3 #4040D3 #8A40D3

triadic

#4040D3 #D34040 #40D340

tetradic

#4040D3 #D3408A #D3D340 #40D38A

square

#4040D3 #D3408A #D3D340 #40D38A

split-complementary

#4040D3 #D38A40 #8AD340

monochromatic

#1D1D7C #2828AE #4040D3 #7272DE #A3A3EA

Accessibility & contrast

On white

7.26

#4040D3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4040D3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040D3

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040D3	#FFFFFF	#000000	##FFFFFF
##4040D3	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED7

Deuteranopia (green-blind)

#0050D0

Tritanopia (blue-blind)

#006985

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4040d3;
/* rgb */ color: rgb(64, 64, 211);
/* oklch */ color: oklch(47.5% 0.218 274.3);

Tailwind

colors: {
  custom: {
    50: '#8976e2',
    500: '#4040d3',
    950: '#000000',
  },
}

SCSS

$custom: #4040d3;
$custom-light: #8976e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4040d3",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 211
  },
  "hsl": {
    "h": 240,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47515,
    "c": 0.21796,
    "h": 274.3
  },
  "luminance": 0.0946
}

Semantic roles & 50–950 ramp

primary

#4040D3

secondary

#D7D798

accent

#E642E6

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #4040D3

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

Preview Lab → · Contrast checker → · Palette generator →