#4040D7#4040D7

#4040D7 is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.9% C 0.223 H 274.0°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#4040D7
RGB	rgb(64, 64, 215)
HSL	hsl(240, 65%, 55%)
HSV	hsv(240, 70%, 84%)
CMYK	cmyk(70.2%, 70.2%, 0%, 15.7%)
CIE-LAB	lab(37.23, 47.85, -76.88)
CIE-LCH	lch(37.23, 90.55, 301.90°)
OKLab	oklab(47.9% 0.0157 -0.2223)
OKLCH	oklch(47.9% 0.223 274)
XYZ	xyz(16.2094, 9.6615, 65.2874)
Luminance	0.0966 (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

#4040D7 #D7D740

analogous

#408CD7 #4040D7 #8C40D7

triadic

#4040D7 #D74040 #40D740

tetradic

#4040D7 #D7408C #D7D740 #40D78C

square

#4040D7 #D7408C #D7D740 #40D78C

split-complementary

#4040D7 #D78C40 #8CD740

monochromatic

#1B1B81 #2626B4 #4040D7 #7373E2 #A5A5EC

Accessibility & contrast

On white

7.16

#4040D7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#4040D7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4040D7

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4040D7	#FFFFFF	#000000	##FFFFFF
##4040D7	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FDC

Deuteranopia (green-blind)

#0050D4

Tritanopia (blue-blind)

#006A87

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4040d7;
/* rgb */ color: rgb(64, 64, 215);
/* oklch */ color: oklch(47.9% 0.223 274.0);

Tailwind

colors: {
  custom: {
    50: '#8a76e5',
    500: '#4040d7',
    950: '#000000',
  },
}

SCSS

$custom: #4040d7;
$custom-light: #8a76e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4040d7",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 215
  },
  "hsl": {
    "h": 240,
    "s": 65.368,
    "l": 54.706
  },
  "oklch": {
    "l": 0.47898,
    "c": 0.22283,
    "h": 274
  },
  "luminance": 0.09663
}

Semantic roles & 50–950 ramp

primary

#4040D7

secondary

#D9D99A

accent

#E83FE8

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #4040D7

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

Preview Lab → · Contrast checker → · Palette generator →