#40407F#40407F

#40407F is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.5% C 0.104 H 280.7°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#40407F
RGB	rgb(64, 64, 127)
HSL	hsl(240, 33%, 37%)
HSV	hsv(240, 50%, 50%)
CMYK	cmyk(49.6%, 49.6%, 0%, 50.2%)
CIE-LAB	lab(30.13, 18.24, -35.80)
CIE-LCH	lch(30.13, 40.17, 297.00°)
OKLab	oklab(40.48% 0.0193 -0.1017)
OKLCH	oklch(40.48% 0.104 280.7)
XYZ	xyz(7.7774, 6.2887, 20.8786)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40407F #7F7F40

analogous

#40607F #40407F #60407F

triadic

#40407F #7F4040 #407F40

tetradic

#40407F #7F4060 #7F7F40 #407F60

square

#40407F #7F4060 #7F7F40 #407F60

split-complementary

#40407F #7F6040 #607F40

monochromatic

#17172E #2B2B56 #40407F #5555A8 #7C7CBD

Accessibility & contrast

On white

9.30

#40407F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#40407F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40407F

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40407F	#FFFFFF	#000000	##FFFFFF
##40407F	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254981

Deuteranopia (green-blind)

#20457E

Tritanopia (blue-blind)

#294D59

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #40407f;
/* rgb */ color: rgb(64, 64, 127);
/* oklch */ color: oklch(40.5% 0.104 280.7);

Tailwind

colors: {
  custom: {
    50: '#7974a4',
    500: '#40407f',
    950: '#000000',
  },
}

SCSS

$custom: #40407f;
$custom-light: #7974a4;
$custom-dark: #000000;

JSON

{
  "hex": "#40407f",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 127
  },
  "hsl": {
    "h": 240,
    "s": 32.984,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40482,
    "c": 0.10353,
    "h": 280.7
  },
  "luminance": 0.06289
}

Semantic roles & 50–950 ramp

primary

#40407F

secondary

#A8A873

accent

#C95FC9

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #40407F

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

Preview Lab → · Contrast checker → · Palette generator →