#40448E#40448E

#40448E is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.4% C 0.120 H 277.6°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#40448E
RGB	rgb(64, 68, 142)
HSL	hsl(237, 38%, 40%)
HSV	hsv(237, 55%, 56%)
CMYK	cmyk(54.9%, 52.1%, 0%, 44.3%)
CIE-LAB	lab(32.21, 20.64, -41.75)
CIE-LCH	lch(32.21, 46.57, 296.31°)
OKLab	oklab(42.36% 0.0159 -0.1192)
OKLCH	oklch(42.36% 0.12 277.6)
XYZ	xyz(9.0624, 7.1766, 26.4936)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40448E #8E8A40

analogous

#406B8E #40448E #63408E

triadic

#40448E #8E4044 #448E40

tetradic

#40448E #8E406B #8E8A40 #408E63

square

#40448E #8E406B #8E8A40 #408E63

split-complementary

#40448E #8E6340 #6B8E40

monochromatic

#1A1C3A #2D3064 #40448E #585CB4 #8285C7

Accessibility & contrast

On white

8.62

#40448E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#40448E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40448E

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40448E	#FFFFFF	#000000	##FFFFFF
##40448E	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4F91

Deuteranopia (green-blind)

#14498C

Tritanopia (blue-blind)

#1C5462

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40448e;
/* rgb */ color: rgb(64, 68, 142);
/* oklch */ color: oklch(42.4% 0.120 277.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40448e",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 142
  },
  "hsl": {
    "h": 236.923,
    "s": 37.864,
    "l": 40.392
  },
  "oklch": {
    "l": 0.42363,
    "c": 0.12023,
    "h": 277.6
  },
  "luminance": 0.07177
}

Semantic roles & 50–950 ramp

primary

#40448E

secondary

#B1AE79

accent

#C85ACE

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #40448E

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

Preview Lab → · Contrast checker → · Palette generator →