#405FBC#405FBC

#405FBC is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.2% C 0.151 H 267.1°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#405FBC
RGB	rgb(64, 95, 188)
HSL	hsl(225, 49%, 49%)
HSV	hsv(225, 66%, 74%)
CMYK	cmyk(66%, 49.5%, 0%, 26.3%)
CIE-LAB	lab(42.62, 19.21, -52.46)
CIE-LCH	lch(42.62, 55.87, 290.11°)
OKLab	oklab(51.23% -0.0076 -0.1504)
OKLCH	oklch(51.23% 0.151 267.1)
XYZ	xyz(15.2805, 12.9038, 49.2526)
Luminance	0.1290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FBC #BC9D40

analogous

#409DBC #405FBC #5F40BC

triadic

#405FBC #BC405F #5FBC40

tetradic

#405FBC #BC409D #BC9D40 #40BC5F

square

#405FBC #BC409D #BC9D40 #40BC5F

split-complementary

#405FBC #BC5F40 #9DBC40

monochromatic

#213161 #30488E #405FBC #6C84CD #9AABDD

Accessibility & contrast

On white

5.86

#405FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#405FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FBC

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FBC	#FFFFFF	#000000	##FFFFFF
##405FBC	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6BBF

Deuteranopia (green-blind)

#095FBA

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #405fbc;
/* rgb */ color: rgb(64, 95, 188);
/* oklch */ color: oklch(51.2% 0.151 267.1);

Tailwind

colors: {
  custom: {
    50: '#828bd1',
    500: '#405fbc',
    950: '#000000',
  },
}

SCSS

$custom: #405fbc;
$custom-light: #828bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#405fbc",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 188
  },
  "hsl": {
    "h": 225,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.51225,
    "c": 0.15055,
    "h": 267.1
  },
  "luminance": 0.12905
}

Semantic roles & 50–950 ramp

primary

#405FBC

secondary

#C9BA8F

accent

#B64FD9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #405FBC

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

Preview Lab → · Contrast checker → · Palette generator →