#405BB0#405BB0

#405BB0 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.139 H 267.8°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#405BB0
RGB	rgb(64, 91, 176)
HSL	hsl(226, 47%, 47%)
HSV	hsv(226, 64%, 69%)
CMYK	cmyk(63.6%, 48.3%, 0%, 31%)
CIE-LAB	lab(40.74, 17.50, -48.45)
CIE-LCH	lch(40.74, 51.51, 289.86°)
OKLab	oklab(49.55% -0.0052 -0.1386)
OKLCH	oklch(49.55% 0.139 267.8)
XYZ	xyz(13.6892, 11.7055, 42.6039)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB0 #B09540

analogous

#4093B0 #405BB0 #5D40B0

triadic

#405BB0 #B0405B #5BB040

tetradic

#405BB0 #B04093 #B09540 #40B05D

square

#405BB0 #B04093 #B09540 #40B05D

split-complementary

#405BB0 #B05D40 #93B040

monochromatic

#1F2D56 #304483 #405BB0 #667DC7 #93A3D8

Accessibility & contrast

On white

6.28

#405BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#405BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB0

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB0	#FFFFFF	#000000	##FFFFFF
##405BB0	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F65B3

Deuteranopia (green-blind)

#195BAE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #405bb0;
/* rgb */ color: rgb(64, 91, 176);
/* oklch */ color: oklch(49.5% 0.139 267.8);

Tailwind

colors: {
  custom: {
    50: '#8089c8',
    500: '#405bb0',
    950: '#000000',
  },
}

SCSS

$custom: #405bb0;
$custom-light: #8089c8;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb0",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 225.536,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49549,
    "c": 0.13871,
    "h": 267.8
  },
  "luminance": 0.11707
}

Semantic roles & 50–950 ramp

primary

#405BB0

secondary

#C3B589

accent

#B651D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405BB0

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

Preview Lab → · Contrast checker → · Palette generator →