#405DB6#405DB6

#405DB6 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.4% C 0.145 H 267.5°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#405DB6
RGB	rgb(64, 93, 182)
HSL	hsl(225, 48%, 48%)
HSV	hsv(225, 65%, 71%)
CMYK	cmyk(64.8%, 48.9%, 0%, 28.6%)
CIE-LAB	lab(41.68, 18.35, -50.47)
CIE-LCH	lch(41.68, 53.70, 289.98°)
OKLab	oklab(50.39% -0.0064 -0.1445)
OKLCH	oklch(50.39% 0.145 267.5)
XYZ	xyz(14.4693, 12.2948, 45.8575)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DB6 #B69940

analogous

#4098B6 #405DB6 #5E40B6

triadic

#405DB6 #B6405D #5DB640

tetradic

#405DB6 #B64098 #B69940 #40B65E

square

#405DB6 #B64098 #B69940 #40B65E

split-complementary

#405DB6 #B65E40 #98B640

monochromatic

#202F5B #304689 #405DB6 #6981CA #96A7DA

Accessibility & contrast

On white

6.07

#405DB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#405DB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DB6

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DB6	#FFFFFF	#000000	##FFFFFF
##405DB6	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E68B9

Deuteranopia (green-blind)

#135DB4

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405db6;
/* rgb */ color: rgb(64, 93, 182);
/* oklch */ color: oklch(50.4% 0.145 267.5);

Tailwind

colors: {
  custom: {
    50: '#818acc',
    500: '#405db6',
    950: '#000000',
  },
}

SCSS

$custom: #405db6;
$custom-light: #818acc;
$custom-dark: #000000;

JSON

{
  "hex": "#405db6",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 182
  },
  "hsl": {
    "h": 225.254,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50386,
    "c": 0.14466,
    "h": 267.5
  },
  "luminance": 0.12296
}

Semantic roles & 50–950 ramp

primary

#405DB6

secondary

#C6B88C

accent

#B650D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405DB6

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

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