#40448D#40448D

#40448D is a dark, moderate blue. Relative luminance 0.071; OKLCH L 42.3% C 0.119 H 277.7°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#40448D
RGB	rgb(64, 68, 141)
HSL	hsl(237, 38%, 40%)
HSV	hsv(237, 55%, 55%)
CMYK	cmyk(54.6%, 51.8%, 0%, 44.7%)
CIE-LAB	lab(32.14, 20.30, -41.24)
CIE-LCH	lch(32.14, 45.97, 296.21°)
OKLab	oklab(42.29% 0.0159 -0.1177)
OKLCH	oklch(42.29% 0.119 277.7)
XYZ	xyz(8.9877, 7.1468, 26.1000)
Luminance	0.0715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40448D #8D8940

analogous

#406A8D #40448D #62408D

triadic

#40448D #8D4044 #448D40

tetradic

#40448D #8D406A #8D8940 #408D62

square

#40448D #8D406A #8D8940 #408D62

split-complementary

#40448D #8D6240 #6A8D40

monochromatic

#1A1B39 #2D3063 #40448D #575CB3 #8185C6

Accessibility & contrast

On white

8.64

#40448D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#40448D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40448D

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40448D	#FFFFFF	#000000	##FFFFFF
##40448D	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204F90

Deuteranopia (green-blind)

#16498B

Tritanopia (blue-blind)

#1D5462

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40448d;
/* rgb */ color: rgb(64, 68, 141);
/* oklch */ color: oklch(42.3% 0.119 277.7);

Tailwind

colors: {
  custom: {
    50: '#7b77af',
    500: '#40448d',
    950: '#000000',
  },
}

SCSS

$custom: #40448d;
$custom-light: #7b77af;
$custom-dark: #000000;

JSON

{
  "hex": "#40448d",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 141
  },
  "hsl": {
    "h": 236.883,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42291,
    "c": 0.11875,
    "h": 277.7
  },
  "luminance": 0.07147
}

Semantic roles & 50–950 ramp

primary

#40448D

secondary

#B0AE78

accent

#C85ACE

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #40448D

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

Preview Lab → · Contrast checker → · Palette generator →