#404A9B#404A9B

#404A9B is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.5% C 0.131 H 274.5°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#404A9B
RGB	rgb(64, 74, 155)
HSL	hsl(233, 42%, 43%)
HSV	hsv(233, 59%, 61%)
CMYK	cmyk(58.7%, 52.3%, 0%, 39.2%)
CIE-LAB	lab(34.71, 21.17, -45.63)
CIE-LCH	lch(34.71, 50.31, 294.89°)
OKLab	oklab(44.53% 0.0103 -0.1305)
OKLCH	oklch(44.53% 0.131 274.5)
XYZ	xyz(10.4776, 8.3533, 32.0642)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404A9B #9B9140

analogous

#40779B #404A9B #64409B

triadic

#404A9B #9B404A #4A9B40

tetradic

#404A9B #9B4077 #9B9140 #409B64

square

#404A9B #9B4077 #9B9140 #409B64

split-complementary

#404A9B #9B6440 #779B40

monochromatic

#1C2144 #2E3570 #404A9B #5C67BC #888FCE

Accessibility & contrast

On white

7.86

#404A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#404A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404A9B

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404A9B	#FFFFFF	#000000	##FFFFFF
##404A9B	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E569E

Deuteranopia (green-blind)

#0A4E99

Tritanopia (blue-blind)

#025C6B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #404a9b;
/* rgb */ color: rgb(64, 74, 155);
/* oklch */ color: oklch(44.5% 0.131 274.5);

Tailwind

colors: {
  custom: {
    50: '#7d7cb9',
    500: '#404a9b',
    950: '#000000',
  },
}

SCSS

$custom: #404a9b;
$custom-light: #7d7cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#404a9b",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 155
  },
  "hsl": {
    "h": 233.407,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44529,
    "c": 0.13094,
    "h": 274.5
  },
  "luminance": 0.08354
}

Semantic roles & 50–950 ramp

primary

#404A9B

secondary

#B8B27E

accent

#C456D1

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #404A9B

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

Preview Lab → · Contrast checker → · Palette generator →