#403F80#403F80

#403F80 is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.3% C 0.107 H 281.2°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#403F80
RGB	rgb(64, 63, 128)
HSL	hsl(241, 34%, 37%)
HSV	hsv(241, 51%, 50%)
CMYK	cmyk(50%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(29.92, 19.23, -36.76)
CIE-LCH	lch(29.92, 41.48, 297.62°)
OKLab	oklab(40.34% 0.0207 -0.1045)
OKLCH	oklch(40.34% 0.107 281.2)
XYZ	xyz(7.7870, 6.2031, 21.2049)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F80 #7F803F

analogous

#3F5F80 #403F80 #603F80

triadic

#403F80 #80403F #3F8040

tetradic

#403F80 #803F5F #7F803F #3F8060

square

#403F80 #803F5F #7F803F #3F8060

split-complementary

#403F80 #80603F #5F803F

monochromatic

#17172E #2B2B57 #403F80 #5553A9 #7C7BBE

Accessibility & contrast

On white

9.37

#403F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#403F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F80

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F80	#FFFFFF	#000000	##FFFFFF
##403F80	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224982

Deuteranopia (green-blind)

#1D447F

Tritanopia (blue-blind)

#294D59

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403f80;
/* rgb */ color: rgb(64, 63, 128);
/* oklch */ color: oklch(40.3% 0.107 281.2);

Tailwind

colors: {
  custom: {
    50: '#7974a5',
    500: '#403f80',
    950: '#000000',
  },
}

SCSS

$custom: #403f80;
$custom-light: #7974a5;
$custom-dark: #000000;

JSON

{
  "hex": "#403f80",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 240.923,
    "s": 34.031,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40344,
    "c": 0.10658,
    "h": 281.2
  },
  "luminance": 0.06204
}

Semantic roles & 50–950 ramp

primary

#403F80

secondary

#A8A872

accent

#CA5EC8

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #403F80

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

Preview Lab → · Contrast checker → · Palette generator →