#404CA7#404CA7

#404CA7 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.8% C 0.146 H 273.6°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#404CA7
RGB	rgb(64, 76, 167)
HSL	hsl(233, 45%, 45%)
HSV	hsv(233, 62%, 65%)
CMYK	cmyk(61.7%, 54.5%, 0%, 34.5%)
CIE-LAB	lab(36.08, 24.05, -50.63)
CIE-LCH	lch(36.08, 56.06, 295.41°)
OKLab	oklab(45.82% 0.009 -0.1452)
OKLCH	oklch(45.82% 0.146 273.6)
XYZ	xyz(11.6715, 9.0480, 37.6831)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA7 #A79B40

analogous

#407FA7 #404CA7 #6840A7

triadic

#404CA7 #A7404C #4CA740

tetradic

#404CA7 #A7407F #A79B40 #40A768

square

#404CA7 #A7407F #A79B40 #40A768

split-complementary

#404CA7 #A76840 #7FA740

monochromatic

#1E244F #2F387B #404CA7 #626DC3 #8E96D4

Accessibility & contrast

On white

7.47

#404CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#404CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA7

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA7	#FFFFFF	#000000	##FFFFFF
##404CA7	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F59AA

Deuteranopia (green-blind)

#0051A5

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #404ca7;
/* rgb */ color: rgb(64, 76, 167);
/* oklch */ color: oklch(45.8% 0.146 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f7dc2',
    500: '#404ca7',
    950: '#000000',
  },
}

SCSS

$custom: #404ca7;
$custom-light: #7f7dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca7",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 167
  },
  "hsl": {
    "h": 233.01,
    "s": 44.589,
    "l": 45.294
  },
  "oklch": {
    "l": 0.45824,
    "c": 0.14551,
    "h": 273.6
  },
  "luminance": 0.09049
}

Semantic roles & 50–950 ramp

primary

#404CA7

secondary

#BFB884

accent

#C554D4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404CA7

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

Preview Lab → · Contrast checker → · Palette generator →