#405FB7#405FB7

#405FB7 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.9% C 0.144 H 266.7°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#405FB7
RGB	rgb(64, 95, 183)
HSL	hsl(224, 48%, 48%)
HSV	hsv(224, 65%, 72%)
CMYK	cmyk(65%, 48.1%, 0%, 28.2%)
CIE-LAB	lab(42.30, 17.42, -50.06)
CIE-LCH	lch(42.30, 53.01, 289.19°)
OKLab	oklab(50.88% -0.0082 -0.1433)
OKLCH	oklch(50.88% 0.144 266.7)
XYZ	xyz(14.7509, 12.6919, 46.4630)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FB7 #B79840

analogous

#409AB7 #405FB7 #5C40B7

triadic

#405FB7 #B7405F #5FB740

tetradic

#405FB7 #B7409A #B79840 #40B75C

square

#405FB7 #B7409A #B79840 #40B75C

split-complementary

#405FB7 #B75C40 #9AB740

monochromatic

#20305C #30478A #405FB7 #6983CB #97A8DB

Accessibility & contrast

On white

5.93

#405FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#405FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FB7

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FB7	#FFFFFF	#000000	##FFFFFF
##405FB7	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#316ABA

Deuteranopia (green-blind)

#185FB5

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #405fb7;
/* rgb */ color: rgb(64, 95, 183);
/* oklch */ color: oklch(50.9% 0.144 266.7);

Tailwind

colors: {
  custom: {
    50: '#818ccd',
    500: '#405fb7',
    950: '#000000',
  },
}

SCSS

$custom: #405fb7;
$custom-light: #818ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#405fb7",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 183
  },
  "hsl": {
    "h": 224.37,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.50875,
    "c": 0.14355,
    "h": 266.7
  },
  "luminance": 0.12693
}

Semantic roles & 50–950 ramp

primary

#405FB7

secondary

#C6B78D

accent

#B450D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #405FB7

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

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