#404E9A#404E9A

#404E9A is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.3% C 0.124 H 272.7°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#404E9A
RGB	rgb(64, 78, 154)
HSL	hsl(231, 41%, 43%)
HSV	hsv(231, 58%, 60%)
CMYK	cmyk(58.4%, 49.4%, 0%, 39.6%)
CIE-LAB	lab(35.73, 18.20, -43.38)
CIE-LCH	lch(35.73, 47.04, 292.76°)
OKLab	oklab(45.28% 0.0058 -0.1239)
OKLCH	oklch(45.28% 0.124 272.7)
XYZ	xyz(10.6696, 8.8711, 31.7156)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E9A #9A8C40

analogous

#407B9A #404E9A #5F409A

triadic

#404E9A #9A404E #4E9A40

tetradic

#404E9A #9A407B #9A8C40 #409A5F

square

#404E9A #9A407B #9A8C40 #409A5F

split-complementary

#404E9A #9A5F40 #7B9A40

monochromatic

#1C2244 #2E386F #404E9A #5C6BBB #8792CD

Accessibility & contrast

On white

7.57

#404E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#404E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E9A

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E9A	#FFFFFF	#000000	##FFFFFF
##404E9A	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29589D

Deuteranopia (green-blind)

#1B5098

Tritanopia (blue-blind)

#025F6C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404e9a;
/* rgb */ color: rgb(64, 78, 154);
/* oklch */ color: oklch(45.3% 0.124 272.7);

Tailwind

colors: {
  custom: {
    50: '#7d7fb8',
    500: '#404e9a',
    950: '#000000',
  },
}

SCSS

$custom: #404e9a;
$custom-light: #7d7fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#404e9a",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 154
  },
  "hsl": {
    "h": 230.667,
    "s": 41.284,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45284,
    "c": 0.124,
    "h": 272.7
  },
  "luminance": 0.08872
}

Semantic roles & 50–950 ramp

primary

#404E9A

secondary

#B8AF7E

accent

#BE57D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #404E9A

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

Preview Lab → · Contrast checker → · Palette generator →