#404D8D#404D8D

#404D8D is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.2% C 0.106 H 272.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#404D8D
RGB	rgb(64, 77, 141)
HSL	hsl(230, 38%, 40%)
HSV	hsv(230, 55%, 55%)
CMYK	cmyk(54.6%, 45.4%, 0%, 44.7%)
CIE-LAB	lab(34.64, 14.37, -37.24)
CIE-LCH	lch(34.64, 39.91, 291.10°)
OKLab	oklab(44.19% 0.005 -0.1058)
OKLCH	oklch(44.19% 0.106 272.7)
XYZ	xyz(9.5744, 8.3202, 26.2956)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404D8D #8D8040

analogous

#40738D #404D8D #59408D

triadic

#404D8D #8D404D #4D8D40

tetradic

#404D8D #8D4073 #8D8040 #408D59

square

#404D8D #8D4073 #8D8040 #408D59

split-complementary

#404D8D #8D5940 #738D40

monochromatic

#1A1F39 #2D3663 #404D8D #5767B3 #818DC6

Accessibility & contrast

On white

7.88

#404D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#404D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404D8D

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404D8D	#FFFFFF	#000000	##FFFFFF
##404D8D	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32558F

Deuteranopia (green-blind)

#294E8C

Tritanopia (blue-blind)

#1B5B66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #404d8d;
/* rgb */ color: rgb(64, 77, 141);
/* oklch */ color: oklch(44.2% 0.106 272.7);

Tailwind

colors: {
  custom: {
    50: '#7b7eaf',
    500: '#404d8d',
    950: '#000000',
  },
}

SCSS

$custom: #404d8d;
$custom-light: #7b7eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#404d8d",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 141
  },
  "hsl": {
    "h": 229.87,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44189,
    "c": 0.10596,
    "h": 272.7
  },
  "luminance": 0.08321
}

Semantic roles & 50–950 ramp

primary

#404D8D

secondary

#B0A778

accent

#BA5ACE

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #404D8D

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

Preview Lab → · Contrast checker → · Palette generator →