#405CB8#405CB8

#405CB8 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.3% C 0.149 H 268.0°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#405CB8
RGB	rgb(64, 92, 184)
HSL	hsl(226, 48%, 49%)
HSV	hsv(226, 65%, 72%)
CMYK	cmyk(65.2%, 50%, 0%, 27.8%)
CIE-LAB	lab(41.54, 19.71, -51.87)
CIE-LCH	lch(41.54, 55.49, 290.81°)
OKLab	oklab(50.32% -0.0052 -0.1486)
OKLCH	oklch(50.32% 0.149 268)
XYZ	xyz(14.5903, 12.2036, 46.9247)
Luminance	0.1221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CB8 #B89C40

analogous

#4098B8 #405CB8 #6040B8

triadic

#405CB8 #B8405C #5CB840

tetradic

#405CB8 #B84098 #B89C40 #40B860

square

#405CB8 #B84098 #B89C40 #40B860

split-complementary

#405CB8 #B86040 #98B840

monochromatic

#202F5D #30458B #405CB8 #6A81CB #97A7DB

Accessibility & contrast

On white

6.10

#405CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#405CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CB8

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CB8	#FFFFFF	#000000	##FFFFFF
##405CB8	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2968BB

Deuteranopia (green-blind)

#065DB6

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405cb8;
/* rgb */ color: rgb(64, 92, 184);
/* oklch */ color: oklch(50.3% 0.149 268.0);

Tailwind

colors: {
  custom: {
    50: '#8189ce',
    500: '#405cb8',
    950: '#000000',
  },
}

SCSS

$custom: #405cb8;
$custom-light: #8189ce;
$custom-dark: #000000;

JSON

{
  "hex": "#405cb8",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 184
  },
  "hsl": {
    "h": 226,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50319,
    "c": 0.14874,
    "h": 268
  },
  "luminance": 0.12205
}

Semantic roles & 50–950 ramp

primary

#405CB8

secondary

#C7B98D

accent

#B850D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405CB8

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

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