#404BA3#404BA3

#404BA3 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.141 H 274.0°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#404BA3
RGB	rgb(64, 75, 163)
HSL	hsl(233, 44%, 45%)
HSV	hsv(233, 61%, 64%)
CMYK	cmyk(60.7%, 54%, 0%, 36.1%)
CIE-LAB	lab(35.53, 23.31, -49.12)
CIE-LCH	lch(35.53, 54.37, 295.38°)
OKLab	oklab(45.32% 0.0098 -0.1408)
OKLCH	oklch(45.32% 0.141 274)
XYZ	xyz(11.2391, 8.7656, 35.7429)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BA3 #A39840

analogous

#407DA3 #404BA3 #6640A3

triadic

#404BA3 #A3404B #4BA340

tetradic

#404BA3 #A3407D #A39840 #40A366

square

#404BA3 #A3407D #A39840 #40A366

split-complementary

#404BA3 #A36640 #7DA340

monochromatic

#1D234B #2F3777 #404BA3 #606AC0 #8C93D2

Accessibility & contrast

On white

7.63

#404BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#404BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404BA3

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BA3	#FFFFFF	#000000	##FFFFFF
##404BA3	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1458A6

Deuteranopia (green-blind)

#004FA1

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404ba3;
/* rgb */ color: rgb(64, 75, 163);
/* oklch */ color: oklch(45.3% 0.141 274.0);

Tailwind

colors: {
  custom: {
    50: '#7e7dbf',
    500: '#404ba3',
    950: '#000000',
  },
}

SCSS

$custom: #404ba3;
$custom-light: #7e7dbf;
$custom-dark: #000000;

JSON

{
  "hex": "#404ba3",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 163
  },
  "hsl": {
    "h": 233.333,
    "s": 43.612,
    "l": 44.51
  },
  "oklch": {
    "l": 0.45323,
    "c": 0.14114,
    "h": 274
  },
  "luminance": 0.08766
}

Semantic roles & 50–950 ramp

primary

#404BA3

secondary

#BDB682

accent

#C554D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404BA3

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

Preview Lab → · Contrast checker → · Palette generator →