#404E8D#404E8D

#404E8D is a dark, moderate blue. Relative luminance 0.085; OKLCH L 44.4% C 0.105 H 272.1°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#404E8D
RGB	rgb(64, 78, 141)
HSL	hsl(229, 38%, 40%)
HSV	hsv(229, 55%, 55%)
CMYK	cmyk(54.6%, 44.7%, 0%, 44.7%)
CIE-LAB	lab(34.93, 13.71, -36.78)
CIE-LCH	lch(34.93, 39.25, 290.44°)
OKLab	oklab(44.41% 0.0038 -0.1045)
OKLCH	oklch(44.41% 0.105 272.1)
XYZ	xyz(9.6449, 8.4612, 26.3191)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E8D #8D7F40

analogous

#40748D #404E8D #58408D

triadic

#404E8D #8D404E #4E8D40

tetradic

#404E8D #8D4074 #8D7F40 #408D58

square

#404E8D #8D4074 #8D7F40 #408D58

split-complementary

#404E8D #8D5840 #748D40

monochromatic

#1A1F39 #2D3763 #404E8D #5768B3 #818EC6

Accessibility & contrast

On white

7.80

#404E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#404E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E8D

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E8D	#FFFFFF	#000000	##FFFFFF
##404E8D	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33568F

Deuteranopia (green-blind)

#2B4F8C

Tritanopia (blue-blind)

#1B5C66

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #404e8d;
/* rgb */ color: rgb(64, 78, 141);
/* oklch */ color: oklch(44.4% 0.105 272.1);

Tailwind

colors: {
  custom: {
    50: '#7b7faf',
    500: '#404e8d',
    950: '#000000',
  },
}

SCSS

$custom: #404e8d;
$custom-light: #7b7faf;
$custom-dark: #000000;

JSON

{
  "hex": "#404e8d",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 141
  },
  "hsl": {
    "h": 229.091,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44406,
    "c": 0.10457,
    "h": 272.1
  },
  "luminance": 0.08462
}

Semantic roles & 50–950 ramp

primary

#404E8D

secondary

#B0A678

accent

#B95ACE

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #404E8D

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

Preview Lab → · Contrast checker → · Palette generator →