#40447A#40447A

#40447A is a dark, moderate blue. Relative luminance 0.066; OKLCH L 41.0% C 0.090 H 278.5°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#40447A
RGB	rgb(64, 68, 122)
HSL	hsl(236, 31%, 36%)
HSV	hsv(236, 48%, 48%)
CMYK	cmyk(47.5%, 44.3%, 0%, 52.2%)
CIE-LAB	lab(30.95, 13.93, -31.37)
CIE-LCH	lch(30.95, 34.32, 293.94°)
OKLab	oklab(41% 0.0132 -0.0887)
OKLCH	oklch(41% 0.09 278.5)
XYZ	xyz(7.6933, 6.6290, 19.2827)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40447A #7A7640

analogous

#40617A #40447A #59407A

triadic

#40447A #7A4044 #447A40

tetradic

#40447A #7A4061 #7A7640 #407A59

square

#40447A #7A4061 #7A7640 #407A59

split-complementary

#40447A #7A5940 #617A40

monochromatic

#16172A #2B2E52 #40447A #555AA2 #7B7FBA

Accessibility & contrast

On white

9.03

#40447A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#40447A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40447A

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40447A	#FFFFFF	#000000	##FFFFFF
##40447A	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4B7C

Deuteranopia (green-blind)

#2B4779

Tritanopia (blue-blind)

#2C4F59

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #40447a;
/* rgb */ color: rgb(64, 68, 122);
/* oklch */ color: oklch(41.0% 0.090 278.5);

Tailwind

colors: {
  custom: {
    50: '#7877a1',
    500: '#40447a',
    950: '#000000',
  },
}

SCSS

$custom: #40447a;
$custom-light: #7877a1;
$custom-dark: #000000;

JSON

{
  "hex": "#40447a",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 122
  },
  "hsl": {
    "h": 235.862,
    "s": 31.183,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41003,
    "c": 0.08971,
    "h": 278.5
  },
  "luminance": 0.06629
}

Semantic roles & 50–950 ramp

primary

#40447A

secondary

#A4A172

accent

#C060C7

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09080F

muted

#7B7B7E

Preview Lab

Preview with #40447A

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

Preview Lab → · Contrast checker → · Palette generator →