#404FAB#404FAB

#404FAB is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.7% C 0.147 H 272.4°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#404FAB
RGB	rgb(64, 79, 171)
HSL	hsl(232, 46%, 46%)
HSV	hsv(232, 63%, 67%)
CMYK	cmyk(62.6%, 53.8%, 0%, 32.9%)
CIE-LAB	lab(37.15, 23.51, -51.27)
CIE-LCH	lch(37.15, 56.41, 294.63°)
OKLab	oklab(46.72% 0.0063 -0.1471)
OKLCH	oklch(46.72% 0.147 272.4)
XYZ	xyz(12.2586, 9.6212, 39.7313)
Luminance	0.0962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FAB #AB9C40

analogous

#4084AB #404FAB #6640AB

triadic

#404FAB #AB404F #4FAB40

tetradic

#404FAB #AB4084 #AB9C40 #40AB66

square

#404FAB #AB4084 #AB9C40 #40AB66

split-complementary

#404FAB #AB6640 #84AB40

monochromatic

#1F2652 #2F3A7E #404FAB #6371C5 #909AD5

Accessibility & contrast

On white

7.18

#404FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#404FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404FAB

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FAB	#FFFFFF	#000000	##FFFFFF
##404FAB	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135CAE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404fab;
/* rgb */ color: rgb(64, 79, 171);
/* oklch */ color: oklch(46.7% 0.147 272.4);

Tailwind

colors: {
  custom: {
    50: '#8080c5',
    500: '#404fab',
    950: '#000000',
  },
}

SCSS

$custom: #404fab;
$custom-light: #8080c5;
$custom-dark: #000000;

JSON

{
  "hex": "#404fab",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 171
  },
  "hsl": {
    "h": 231.589,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46723,
    "c": 0.14721,
    "h": 272.4
  },
  "luminance": 0.09622
}

Semantic roles & 50–950 ramp

primary

#404FAB

secondary

#C1B886

accent

#C353D5

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404FAB

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

Preview Lab → · Contrast checker → · Palette generator →