#404AA0#404AA0

#404AA0 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.138 H 274.4°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#404AA0
RGB	rgb(64, 74, 160)
HSL	hsl(234, 43%, 44%)
HSV	hsv(234, 60%, 63%)
CMYK	cmyk(60%, 53.7%, 0%, 37.3%)
CIE-LAB	lab(35.05, 22.91, -48.09)
CIE-LCH	lch(35.05, 53.27, 295.48°)
OKLab	oklab(44.9% 0.0107 -0.1378)
OKLCH	oklch(44.9% 0.138 274.4)
XYZ	xyz(10.9062, 8.5248, 34.3216)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404AA0 #A09640

analogous

#407AA0 #404AA0 #6640A0

triadic

#404AA0 #A0404A #4AA040

tetradic

#404AA0 #A0407A #A09640 #40A066

square

#404AA0 #A0407A #A09640 #40A066

split-complementary

#404AA0 #A06640 #7AA040

monochromatic

#1D2249 #2F3674 #404AA0 #5E68BF #8A91D0

Accessibility & contrast

On white

7.76

#404AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#404AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404AA0

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404AA0	#FFFFFF	#000000	##FFFFFF
##404AA0	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1657A3

Deuteranopia (green-blind)

#004E9E

Tritanopia (blue-blind)

#005E6D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #404aa0;
/* rgb */ color: rgb(64, 74, 160);
/* oklch */ color: oklch(44.9% 0.138 274.4);

Tailwind

colors: {
  custom: {
    50: '#7e7cbd',
    500: '#404aa0',
    950: '#000000',
  },
}

SCSS

$custom: #404aa0;
$custom-light: #7e7cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#404aa0",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 160
  },
  "hsl": {
    "h": 233.75,
    "s": 42.857,
    "l": 43.922
  },
  "oklch": {
    "l": 0.44899,
    "c": 0.13819,
    "h": 274.4
  },
  "luminance": 0.08526
}

Semantic roles & 50–950 ramp

primary

#404AA0

secondary

#BBB581

accent

#C655D3

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404AA0

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

Preview Lab → · Contrast checker → · Palette generator →