#404EA1#404EA1

#404EA1 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.8% C 0.134 H 272.8°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#404EA1
RGB	rgb(64, 78, 161)
HSL	hsl(231, 43%, 44%)
HSV	hsv(231, 60%, 63%)
CMYK	cmyk(60.2%, 51.6%, 0%, 36.9%)
CIE-LAB	lab(36.20, 20.65, -46.85)
CIE-LCH	lch(36.20, 51.20, 293.79°)
OKLab	oklab(45.78% 0.0065 -0.1341)
OKLCH	oklch(45.78% 0.134 272.8)
XYZ	xyz(11.2696, 9.1111, 34.8760)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EA1 #A19340

analogous

#407FA1 #404EA1 #6340A1

triadic

#404EA1 #A1404E #4EA140

tetradic

#404EA1 #A1407F #A19340 #40A163

square

#404EA1 #A1407F #A19340 #40A163

split-complementary

#404EA1 #A16340 #7FA140

monochromatic

#1D2449 #2F3975 #404EA1 #5F6DBF #8B95D1

Accessibility & contrast

On white

7.44

#404EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#404EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EA1

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EA1	#FFFFFF	#000000	##FFFFFF
##404EA1	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215AA4

Deuteranopia (green-blind)

#0A519F

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #404ea1;
/* rgb */ color: rgb(64, 78, 161);
/* oklch */ color: oklch(45.8% 0.134 272.8);

Tailwind

colors: {
  custom: {
    50: '#7e7fbd',
    500: '#404ea1',
    950: '#000000',
  },
}

SCSS

$custom: #404ea1;
$custom-light: #7e7fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#404ea1",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 161
  },
  "hsl": {
    "h": 231.34,
    "s": 43.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.45783,
    "c": 0.13423,
    "h": 272.8
  },
  "luminance": 0.09112
}

Semantic roles & 50–950 ramp

primary

#404EA1

secondary

#BCB381

accent

#C155D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404EA1

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

Preview Lab → · Contrast checker → · Palette generator →