#405BB1#405BB1

#405BB1 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.140 H 267.9°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#405BB1
RGB	rgb(64, 91, 177)
HSL	hsl(226, 47%, 47%)
HSV	hsv(226, 64%, 69%)
CMYK	cmyk(63.8%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(40.81, 17.86, -48.93)
CIE-LCH	lch(40.81, 52.09, 290.05°)
OKLab	oklab(49.62% -0.0051 -0.14)
OKLCH	oklch(49.62% 0.14 267.9)
XYZ	xyz(13.7885, 11.7453, 43.1269)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB1 #B19640

analogous

#4093B1 #405BB1 #5E40B1

triadic

#405BB1 #B1405B #5BB140

tetradic

#405BB1 #B14093 #B19640 #40B15E

square

#405BB1 #B14093 #B19640 #40B15E

split-complementary

#405BB1 #B15E40 #93B140

monochromatic

#1F2D57 #304484 #405BB1 #667EC8 #93A4D8

Accessibility & contrast

On white

6.27

#405BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#405BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB1

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB1	#FFFFFF	#000000	##FFFFFF
##405BB1	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E66B4

Deuteranopia (green-blind)

#175BAF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #405bb1;
/* rgb */ color: rgb(64, 91, 177);
/* oklch */ color: oklch(49.6% 0.140 267.9);

Tailwind

colors: {
  custom: {
    50: '#8089c9',
    500: '#405bb1',
    950: '#000000',
  },
}

SCSS

$custom: #405bb1;
$custom-light: #8089c9;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb1",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 225.664,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49618,
    "c": 0.14013,
    "h": 267.9
  },
  "luminance": 0.11746
}

Semantic roles & 50–950 ramp

primary

#405BB1

secondary

#C3B689

accent

#B751D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405BB1

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

Preview Lab → · Contrast checker → · Palette generator →