#404CA5#404CA5

#404CA5 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.7% C 0.143 H 273.6°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#404CA5
RGB	rgb(64, 76, 165)
HSL	hsl(233, 44%, 45%)
HSV	hsv(233, 61%, 65%)
CMYK	cmyk(61.2%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(35.94, 23.35, -49.66)
CIE-LCH	lch(35.94, 54.88, 295.19°)
OKLab	oklab(45.67% 0.0089 -0.1424)
OKLCH	oklch(45.67% 0.143 273.6)
XYZ	xyz(11.4881, 8.9746, 36.7169)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA5 #A59940

analogous

#407FA5 #404CA5 #6640A5

triadic

#404CA5 #A5404C #4CA540

tetradic

#404CA5 #A5407F #A59940 #40A566

square

#404CA5 #A5407F #A59940 #40A566

split-complementary

#404CA5 #A56640 #7FA540

monochromatic

#1E234D #2F3879 #404CA5 #616CC2 #8D95D3

Accessibility & contrast

On white

7.51

#404CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#404CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA5

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA5	#FFFFFF	#000000	##FFFFFF
##404CA5	1.00	7.51	2.79	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1459A8

Deuteranopia (green-blind)

#0050A3

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #404ca5;
/* rgb */ color: rgb(64, 76, 165);
/* oklch */ color: oklch(45.7% 0.143 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f7dc0',
    500: '#404ca5',
    950: '#000000',
  },
}

SCSS

$custom: #404ca5;
$custom-light: #7f7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca5",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 232.871,
    "s": 44.105,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45673,
    "c": 0.14266,
    "h": 273.6
  },
  "luminance": 0.08975
}

Semantic roles & 50–950 ramp

primary

#404CA5

secondary

#BEB783

accent

#C554D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404CA5

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

Preview Lab → · Contrast checker → · Palette generator →