#404C8F#404C8F

#404C8F is a dark, moderate blue. Relative luminance 0.082; OKLCH L 44.1% C 0.110 H 273.4°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#404C8F
RGB	rgb(64, 76, 143)
HSL	hsl(231, 38%, 41%)
HSV	hsv(231, 55%, 56%)
CMYK	cmyk(55.2%, 46.9%, 0%, 43.9%)
CIE-LAB	lab(34.48, 15.71, -38.71)
CIE-LCH	lch(34.48, 41.78, 292.09°)
OKLab	oklab(44.11% 0.0066 -0.1102)
OKLCH	oklch(44.11% 0.11 273.4)
XYZ	xyz(9.6551, 8.2414, 27.0632)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404C8F #8F8340

analogous

#40738F #404C8F #5B408F

triadic

#404C8F #8F404C #4C8F40

tetradic

#404C8F #8F4073 #8F8340 #408F5B

square

#404C8F #8F4073 #8F8340 #408F5B

split-complementary

#404C8F #8F5B40 #738F40

monochromatic

#1A1F3A #2D3665 #404C8F #5866B4 #828DC7

Accessibility & contrast

On white

7.93

#404C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#404C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404C8F

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404C8F	#FFFFFF	#000000	##FFFFFF
##404C8F	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5591

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#195B66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #404c8f;
/* rgb */ color: rgb(64, 76, 143);
/* oklch */ color: oklch(44.1% 0.110 273.4);

Tailwind

colors: {
  custom: {
    50: '#7b7db0',
    500: '#404c8f',
    950: '#000000',
  },
}

SCSS

$custom: #404c8f;
$custom-light: #7b7db0;
$custom-dark: #000000;

JSON

{
  "hex": "#404c8f",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 143
  },
  "hsl": {
    "h": 230.886,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44106,
    "c": 0.11038,
    "h": 273.4
  },
  "luminance": 0.08242
}

Semantic roles & 50–950 ramp

primary

#404C8F

secondary

#B2A979

accent

#BC5ACE

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #404C8F

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

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