#405FAB#405FAB

#405FAB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.127 H 265.4°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#405FAB
RGB	rgb(64, 95, 171)
HSL	hsl(223, 46%, 46%)
HSV	hsv(223, 63%, 67%)
CMYK	cmyk(62.6%, 44.4%, 0%, 32.9%)
CIE-LAB	lab(41.55, 13.15, -44.20)
CIE-LCH	lch(41.55, 46.12, 286.57°)
OKLab	oklab(50.07% -0.0101 -0.1261)
OKLCH	oklch(50.07% 0.127 265.4)
XYZ	xyz(13.5547, 12.2135, 40.1633)
Luminance	0.1221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FAB #AB8C40

analogous

#4094AB #405FAB #5640AB

triadic

#405FAB #AB405F #5FAB40

tetradic

#405FAB #AB4094 #AB8C40 #40AB56

square

#405FAB #AB4094 #AB8C40 #40AB56

split-complementary

#405FAB #AB5640 #94AB40

monochromatic

#1F2E52 #2F467E #405FAB #6380C5 #90A4D5

Accessibility & contrast

On white

6.10

#405FAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#405FAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FAB

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FAB	#FFFFFF	#000000	##FFFFFF
##405FAB	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C67AE

Deuteranopia (green-blind)

#2B5DA9

Tritanopia (blue-blind)

#00707C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405fab;
/* rgb */ color: rgb(64, 95, 171);
/* oklch */ color: oklch(50.1% 0.127 265.4);

Tailwind

colors: {
  custom: {
    50: '#7f8cc4',
    500: '#405fab',
    950: '#000000',
  },
}

SCSS

$custom: #405fab;
$custom-light: #7f8cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#405fab",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 171
  },
  "hsl": {
    "h": 222.617,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.50068,
    "c": 0.1265,
    "h": 265.4
  },
  "luminance": 0.12215
}

Semantic roles & 50–950 ramp

primary

#405FAB

secondary

#C1B086

accent

#AF53D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #405FAB

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

Preview Lab → · Contrast checker → · Palette generator →