#405CB0#405CB0

#405CB0 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.8% C 0.137 H 267.4°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#405CB0
RGB	rgb(64, 92, 176)
HSL	hsl(225, 47%, 47%)
HSV	hsv(225, 64%, 69%)
CMYK	cmyk(63.6%, 47.7%, 0%, 31%)
CIE-LAB	lab(41.02, 16.86, -48.00)
CIE-LCH	lch(41.02, 50.88, 289.35°)
OKLab	oklab(49.76% -0.0062 -0.1373)
OKLCH	oklch(49.76% 0.137 267.4)
XYZ	xyz(13.7753, 11.8776, 42.6326)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CB0 #B09440

analogous

#4094B0 #405CB0 #5C40B0

triadic

#405CB0 #B0405C #5CB040

tetradic

#405CB0 #B04094 #B09440 #40B05C

square

#405CB0 #B04094 #B09440 #40B05C

split-complementary

#405CB0 #B05C40 #94B040

monochromatic

#1F2D56 #304583 #405CB0 #667EC7 #93A4D8

Accessibility & contrast

On white

6.22

#405CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#405CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CB0

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CB0	#FFFFFF	#000000	##FFFFFF
##405CB0	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3266B3

Deuteranopia (green-blind)

#1D5CAE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405cb0;
/* rgb */ color: rgb(64, 92, 176);
/* oklch */ color: oklch(49.8% 0.137 267.4);

Tailwind

colors: {
  custom: {
    50: '#8089c8',
    500: '#405cb0',
    950: '#000000',
  },
}

SCSS

$custom: #405cb0;
$custom-light: #8089c8;
$custom-dark: #000000;

JSON

{
  "hex": "#405cb0",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 176
  },
  "hsl": {
    "h": 225,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.4976,
    "c": 0.13743,
    "h": 267.4
  },
  "luminance": 0.11879
}

Semantic roles & 50–950 ramp

primary

#405CB0

secondary

#C3B489

accent

#B551D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405CB0

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

Preview Lab → · Contrast checker → · Palette generator →