#405DCB#405DCB

#405DCB is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.174 H 268.5°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#405DCB
RGB	rgb(64, 93, 203)
HSL	hsl(227, 57%, 52%)
HSV	hsv(227, 68%, 80%)
CMYK	cmyk(68.5%, 54.2%, 0%, 20.4%)
CIE-LAB	lab(43.11, 25.86, -60.36)
CIE-LCH	lch(43.11, 65.67, 293.19°)
OKLab	oklab(51.92% -0.0044 -0.1736)
OKLCH	oklch(51.92% 0.174 268.5)
XYZ	xyz(16.8045, 13.2288, 58.1562)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DCB #CBAE40

analogous

#40A3CB #405DCB #6840CB

triadic

#405DCB #CB405D #5DCB40

tetradic

#405DCB #CB40A3 #CBAE40 #40CB68

square

#405DCB #CB40A3 #CBAE40 #40CB68

split-complementary

#405DCB #CB6840 #A3CB40

monochromatic

#1F3072 #2C45A2 #405DCB #7086D8 #A0AFE5

Accessibility & contrast

On white

5.76

#405DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#405DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DCB

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DCB	#FFFFFF	#000000	##FFFFFF
##405DCB	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#026CCF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #405dcb;
/* rgb */ color: rgb(64, 93, 203);
/* oklch */ color: oklch(51.9% 0.174 268.5);

Tailwind

colors: {
  custom: {
    50: '#858adc',
    500: '#405dcb',
    950: '#000000',
  },
}

SCSS

$custom: #405dcb;
$custom-light: #858adc;
$custom-dark: #000000;

JSON

{
  "hex": "#405dcb",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 203
  },
  "hsl": {
    "h": 227.482,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5192,
    "c": 0.17371,
    "h": 268.5
  },
  "luminance": 0.1323
}

Semantic roles & 50–950 ramp

primary

#405DCB

secondary

#D2C595

accent

#C147E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405DCB

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

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