#404E99#404E99

#404E99 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.2% C 0.123 H 272.6°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#404E99
RGB	rgb(64, 78, 153)
HSL	hsl(231, 41%, 43%)
HSV	hsv(231, 58%, 60%)
CMYK	cmyk(58.2%, 49%, 0%, 40%)
CIE-LAB	lab(35.67, 17.85, -42.88)
CIE-LCH	lch(35.67, 46.45, 292.61°)
OKLab	oklab(45.22% 0.0056 -0.1224)
OKLCH	oklch(45.22% 0.123 272.6)
XYZ	xyz(10.5866, 8.8379, 31.2788)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E99 #998B40

analogous

#407A99 #404E99 #5F4099

triadic

#404E99 #99404E #4E9940

tetradic

#404E99 #99407A #998B40 #40995F

square

#404E99 #99407A #998B40 #40995F

split-complementary

#404E99 #995F40 #7A9940

monochromatic

#1C2243 #2E386E #404E99 #5C6BBB #8792CD

Accessibility & contrast

On white

7.59

#404E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#404E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E99

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E99	#FFFFFF	#000000	##FFFFFF
##404E99	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A589C

Deuteranopia (green-blind)

#1C5097

Tritanopia (blue-blind)

#055F6C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404e99;
/* rgb */ color: rgb(64, 78, 153);
/* oklch */ color: oklch(45.2% 0.123 272.6);

Tailwind

colors: {
  custom: {
    50: '#7c7fb7',
    500: '#404e99',
    950: '#000000',
  },
}

SCSS

$custom: #404e99;
$custom-light: #7c7fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#404e99",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 153
  },
  "hsl": {
    "h": 230.562,
    "s": 41.014,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45215,
    "c": 0.12253,
    "h": 272.6
  },
  "luminance": 0.08839
}

Semantic roles & 50–950 ramp

primary

#404E99

secondary

#B7AE7E

accent

#BE57D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #404E99

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

Preview Lab → · Contrast checker → · Palette generator →