#405CC7#405CC7

#405CC7 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.4% C 0.170 H 268.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#405CC7
RGB	rgb(64, 92, 199)
HSL	hsl(228, 55%, 52%)
HSV	hsv(228, 68%, 78%)
CMYK	cmyk(67.8%, 53.8%, 0%, 22%)
CIE-LAB	lab(42.56, 25.07, -58.94)
CIE-LCH	lch(42.56, 64.05, 293.04°)
OKLab	oklab(51.42% -0.0038 -0.1695)
OKLCH	oklch(51.42% 0.17 268.7)
XYZ	xyz(16.2468, 12.8662, 55.6490)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CC7 #C7AB40

analogous

#409FC7 #405CC7 #6840C7

triadic

#405CC7 #C7405C #5CC740

tetradic

#405CC7 #C7409F #C7AB40 #40C768

square

#405CC7 #C7409F #C7AB40 #40C768

split-complementary

#405CC7 #C76840 #9FC740

monochromatic

#20306D #2E459C #405CC7 #6F84D5 #9FADE3

Accessibility & contrast

On white

5.88

#405CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#405CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CC7

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CC7	#FFFFFF	#000000	##FFFFFF
##405CC7	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B6BCB

Deuteranopia (green-blind)

#005FC5

Tritanopia (blue-blind)

#007688

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #405cc7;
/* rgb */ color: rgb(64, 92, 199);
/* oklch */ color: oklch(51.4% 0.170 268.7);

Tailwind

colors: {
  custom: {
    50: '#8489d9',
    500: '#405cc7',
    950: '#000000',
  },
}

SCSS

$custom: #405cc7;
$custom-light: #8489d9;
$custom-dark: #000000;

JSON

{
  "hex": "#405cc7",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 199
  },
  "hsl": {
    "h": 227.556,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51419,
    "c": 0.1695,
    "h": 268.7
  },
  "luminance": 0.12868
}

Semantic roles & 50–950 ramp

primary

#405CC7

secondary

#CFC394

accent

#BF4ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405CC7

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

Preview Lab → · Contrast checker → · Palette generator →