#403F79#403F79

#403F79 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.9% C 0.096 H 281.9°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#403F79
RGB	rgb(64, 63, 121)
HSL	hsl(241, 32%, 36%)
HSV	hsv(241, 48%, 47%)
CMYK	cmyk(47.1%, 47.9%, 0%, 52.5%)
CIE-LAB	lab(29.48, 16.93, -33.08)
CIE-LCH	lch(29.48, 37.16, 297.10°)
OKLab	oklab(39.87% 0.0198 -0.0938)
OKLCH	oklch(39.87% 0.096 281.9)
XYZ	xyz(7.3420, 6.0251, 18.8616)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F79 #78793F

analogous

#3F5B79 #403F79 #5D3F79

triadic

#403F79 #79403F #3F7940

tetradic

#403F79 #793F5B #78793F #3F795D

square

#403F79 #793F5B #78793F #3F795D

split-complementary

#403F79 #795D3F #5B793F

monochromatic

#151529 #2B2A51 #403F79 #5554A1 #7A79B9

Accessibility & contrast

On white

9.52

#403F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#403F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F79

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F79	#FFFFFF	#000000	##FFFFFF
##403F79	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28487B

Deuteranopia (green-blind)

#244378

Tritanopia (blue-blind)

#2D4B56

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #403f79;
/* rgb */ color: rgb(64, 63, 121);
/* oklch */ color: oklch(39.9% 0.096 281.9);

Tailwind

colors: {
  custom: {
    50: '#7874a0',
    500: '#403f79',
    950: '#000000',
  },
}

SCSS

$custom: #403f79;
$custom-light: #7874a0;
$custom-dark: #000000;

JSON

{
  "hex": "#403f79",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 121
  },
  "hsl": {
    "h": 241.034,
    "s": 31.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39866,
    "c": 0.09584,
    "h": 281.9
  },
  "luminance": 0.06025
}

Semantic roles & 50–950 ramp

primary

#403F79

secondary

#A3A470

accent

#C860C6

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09080F

muted

#7B7B7E

Preview Lab

Preview with #403F79

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

Preview Lab → · Contrast checker → · Palette generator →