#40407C#40407C

#40407C is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.3% C 0.099 H 281.0°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#40407C
RGB	rgb(64, 64, 124)
HSL	hsl(240, 32%, 37%)
HSV	hsv(240, 48%, 49%)
CMYK	cmyk(48.4%, 48.4%, 0%, 51.4%)
CIE-LAB	lab(29.94, 17.25, -34.22)
CIE-LCH	lch(29.94, 38.32, 296.74°)
OKLab	oklab(40.28% 0.0189 -0.0971)
OKLCH	oklch(40.28% 0.099 281)
XYZ	xyz(7.5847, 6.2116, 19.8642)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40407C #7C7C40

analogous

#405E7C #40407C #5E407C

triadic

#40407C #7C4040 #407C40

tetradic

#40407C #7C405E #7C7C40 #407C5E

square

#40407C #7C405E #7C7C40 #407C5E

split-complementary

#40407C #7C5E40 #5E7C40

monochromatic

#16162B #2B2B54 #40407C #5555A4 #7B7BBB

Accessibility & contrast

On white

9.36

#40407C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#40407C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40407C

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40407C	#FFFFFF	#000000	##FFFFFF
##40407C	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27497E

Deuteranopia (green-blind)

#23447B

Tritanopia (blue-blind)

#2B4D58

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #40407c;
/* rgb */ color: rgb(64, 64, 124);
/* oklch */ color: oklch(40.3% 0.099 281.0);

Tailwind

colors: {
  custom: {
    50: '#7974a2',
    500: '#40407c',
    950: '#000000',
  },
}

SCSS

$custom: #40407c;
$custom-light: #7974a2;
$custom-dark: #000000;

JSON

{
  "hex": "#40407c",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 124
  },
  "hsl": {
    "h": 240,
    "s": 31.915,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40277,
    "c": 0.09893,
    "h": 281
  },
  "luminance": 0.06212
}

Semantic roles & 50–950 ramp

primary

#40407C

secondary

#A6A672

accent

#C860C8

background

#F7F7FA

surface

#EEEDF3

border

#C9C8CD

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #40407C

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

Preview Lab → · Contrast checker → · Palette generator →