#403F7D#403F7D

#403F7D is a dark, moderate blue. Relative luminance 0.061; OKLCH L 40.1% C 0.102 H 281.5°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#403F7D
RGB	rgb(64, 63, 125)
HSL	hsl(241, 33%, 37%)
HSV	hsv(241, 50%, 49%)
CMYK	cmyk(48.8%, 49.6%, 0%, 51%)
CIE-LAB	lab(29.73, 18.24, -35.19)
CIE-LCH	lch(29.73, 39.64, 297.40°)
OKLab	oklab(40.14% 0.0203 -0.0999)
OKLCH	oklch(40.14% 0.102 281.5)
XYZ	xyz(7.5924, 6.1253, 20.1803)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F7D #7C7D3F

analogous

#3F5D7D #403F7D #5F3F7D

triadic

#403F7D #7D403F #3F7D40

tetradic

#403F7D #7D3F5D #7C7D3F #3F7D5F

square

#403F7D #7D3F5D #7C7D3F #3F7D5F

split-complementary

#403F7D #7D5F3F #5D7D3F

monochromatic

#16162C #2B2A54 #403F7D #5554A6 #7B7ABC

Accessibility & contrast

On white

9.44

#403F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#403F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F7D

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F7D	#FFFFFF	#000000	##FFFFFF
##403F7D	1.00	9.44	2.23	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25487F

Deuteranopia (green-blind)

#21447C

Tritanopia (blue-blind)

#2B4C58

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403f7d;
/* rgb */ color: rgb(64, 63, 125);
/* oklch */ color: oklch(40.1% 0.102 281.5);

Tailwind

colors: {
  custom: {
    50: '#7974a3',
    500: '#403f7d',
    950: '#000000',
  },
}

SCSS

$custom: #403f7d;
$custom-light: #7974a3;
$custom-dark: #000000;

JSON

{
  "hex": "#403f7d",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 240.968,
    "s": 32.979,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40136,
    "c": 0.102,
    "h": 281.5
  },
  "luminance": 0.06126
}

Semantic roles & 50–950 ramp

primary

#403F7D

secondary

#A6A671

accent

#C95FC7

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #403F7D

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

Preview Lab → · Contrast checker → · Palette generator →