#404CA3#404CA3

#404CA3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.5% C 0.140 H 273.6°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#404CA3
RGB	rgb(64, 76, 163)
HSL	hsl(233, 44%, 45%)
HSV	hsv(233, 61%, 64%)
CMYK	cmyk(60.7%, 53.4%, 0%, 36.1%)
CIE-LAB	lab(35.80, 22.66, -48.69)
CIE-LCH	lch(35.80, 53.71, 294.95°)
OKLab	oklab(45.52% 0.0088 -0.1395)
OKLCH	oklch(45.52% 0.14 273.6)
XYZ	xyz(11.3075, 8.9023, 35.7657)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA3 #A39740

analogous

#407EA3 #404CA3 #6640A3

triadic

#404CA3 #A3404C #4CA340

tetradic

#404CA3 #A3407E #A39740 #40A366

square

#404CA3 #A3407E #A39740 #40A366

split-complementary

#404CA3 #A36640 #7EA340

monochromatic

#1D234B #2F3877 #404CA3 #606BC0 #8C94D2

Accessibility & contrast

On white

7.55

#404CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#404CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA3

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA3	#FFFFFF	#000000	##FFFFFF
##404CA3	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1759A6

Deuteranopia (green-blind)

#0050A1

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404ca3;
/* rgb */ color: rgb(64, 76, 163);
/* oklch */ color: oklch(45.5% 0.140 273.6);

Tailwind

colors: {
  custom: {
    50: '#7e7dbf',
    500: '#404ca3',
    950: '#000000',
  },
}

SCSS

$custom: #404ca3;
$custom-light: #7e7dbf;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca3",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 163
  },
  "hsl": {
    "h": 232.727,
    "s": 43.612,
    "l": 44.51
  },
  "oklch": {
    "l": 0.45524,
    "c": 0.1398,
    "h": 273.6
  },
  "luminance": 0.08903
}

Semantic roles & 50–950 ramp

primary

#404CA3

secondary

#BDB682

accent

#C454D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404CA3

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

Preview Lab → · Contrast checker → · Palette generator →