#405CA5#405CA5

#405CA5 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.0% C 0.122 H 266.2°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#405CA5
RGB	rgb(64, 92, 165)
HSL	hsl(223, 44%, 45%)
HSV	hsv(223, 61%, 65%)
CMYK	cmyk(61.2%, 44.2%, 0%, 35.3%)
CIE-LAB	lab(40.34, 12.96, -42.58)
CIE-LCH	lch(40.34, 44.51, 286.93°)
OKLab	oklab(49.02% -0.008 -0.1214)
OKLCH	oklch(49.02% 0.122 266.2)
XYZ	xyz(12.7307, 11.4598, 37.1311)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CA5 #A58940

analogous

#408FA5 #405CA5 #5640A5

triadic

#405CA5 #A5405C #5CA540

tetradic

#405CA5 #A5408F #A58940 #40A556

square

#405CA5 #A5408F #A58940 #40A556

split-complementary

#405CA5 #A55640 #8FA540

monochromatic

#1E2B4D #2F4379 #405CA5 #617CC2 #8DA0D3

Accessibility & contrast

On white

6.38

#405CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#405CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CA5

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CA5	#FFFFFF	#000000	##FFFFFF
##405CA5	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B64A8

Deuteranopia (green-blind)

#2C5BA3

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #405ca5;
/* rgb */ color: rgb(64, 92, 165);
/* oklch */ color: oklch(49.0% 0.122 266.2);

Tailwind

colors: {
  custom: {
    50: '#7e89c0',
    500: '#405ca5',
    950: '#000000',
  },
}

SCSS

$custom: #405ca5;
$custom-light: #7e89c0;
$custom-dark: #000000;

JSON

{
  "hex": "#405ca5",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 165
  },
  "hsl": {
    "h": 223.366,
    "s": 44.105,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49024,
    "c": 0.12163,
    "h": 266.2
  },
  "luminance": 0.11461
}

Semantic roles & 50–950 ramp

primary

#405CA5

secondary

#BEAD83

accent

#B054D4

background

#F8F8FB

surface

#EFF0F7

border

#CACBD0

text

#0B0B12

muted

#7C7C81

Preview Lab

Preview with #405CA5

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

Preview Lab → · Contrast checker → · Palette generator →