#40448F#40448F

#40448F is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.4% C 0.122 H 277.6°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#40448F
RGB	rgb(64, 68, 143)
HSL	hsl(237, 38%, 41%)
HSV	hsv(237, 55%, 56%)
CMYK	cmyk(55.2%, 52.4%, 0%, 43.9%)
CIE-LAB	lab(32.27, 20.98, -42.25)
CIE-LCH	lch(32.27, 47.17, 296.41°)
OKLab	oklab(42.44% 0.016 -0.1207)
OKLCH	oklch(42.44% 0.122 277.6)
XYZ	xyz(9.1378, 7.2068, 26.8908)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40448F #8F8B40

analogous

#406B8F #40448F #63408F

triadic

#40448F #8F4044 #448F40

tetradic

#40448F #8F406B #8F8B40 #408F63

square

#40448F #8F406B #8F8B40 #408F63

split-complementary

#40448F #8F6340 #6B8F40

monochromatic

#1A1C3A #2D3065 #40448F #585DB4 #8286C7

Accessibility & contrast

On white

8.60

#40448F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#40448F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40448F

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40448F	#FFFFFF	#000000	##FFFFFF
##40448F	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4F92

Deuteranopia (green-blind)

#12498D

Tritanopia (blue-blind)

#1B5563

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40448f;
/* rgb */ color: rgb(64, 68, 143);
/* oklch */ color: oklch(42.4% 0.122 277.6);

Tailwind

colors: {
  custom: {
    50: '#7b77b0',
    500: '#40448f',
    950: '#000000',
  },
}

SCSS

$custom: #40448f;
$custom-light: #7b77b0;
$custom-dark: #000000;

JSON

{
  "hex": "#40448f",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 143
  },
  "hsl": {
    "h": 236.962,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.42436,
    "c": 0.12172,
    "h": 277.6
  },
  "luminance": 0.07207
}

Semantic roles & 50–950 ramp

primary

#40448F

secondary

#B2AF79

accent

#C85ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #40448F

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

Preview Lab → · Contrast checker → · Palette generator →