#405CD0#405CD0

#405CD0 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.182 H 268.9°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#405CD0
RGB	rgb(64, 92, 208)
HSL	hsl(228, 61%, 53%)
HSV	hsv(228, 69%, 82%)
CMYK	cmyk(69.2%, 55.8%, 0%, 18.4%)
CIE-LAB	lab(43.21, 28.28, -63.08)
CIE-LCH	lch(43.21, 69.13, 294.15°)
OKLab	oklab(52.11% -0.0033 -0.1816)
OKLCH	oklch(52.11% 0.182 268.9)
XYZ	xyz(17.3228, 13.2966, 61.3159)
Luminance	0.1330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CD0 #D0B440

analogous

#40A4D0 #405CD0 #6C40D0

triadic

#405CD0 #D0405C #5CD040

tetradic

#405CD0 #D040A4 #D0B440 #40D06C

square

#405CD0 #D040A4 #D0B440 #40D06C

split-complementary

#405CD0 #D06C40 #A4D040

monochromatic

#1E2F78 #2A42A9 #405CD0 #7186DC #A2B0E8

Accessibility & contrast

On white

5.74

#405CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#405CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CD0

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CD0	#FFFFFF	#000000	##FFFFFF
##405CD0	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD4

Deuteranopia (green-blind)

#0060CE

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #405cd0;
/* rgb */ color: rgb(64, 92, 208);
/* oklch */ color: oklch(52.1% 0.182 268.9);

Tailwind

colors: {
  custom: {
    50: '#8689df',
    500: '#405cd0',
    950: '#000000',
  },
}

SCSS

$custom: #405cd0;
$custom-light: #8689df;
$custom-dark: #000000;

JSON

{
  "hex": "#405cd0",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 208
  },
  "hsl": {
    "h": 228.333,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.52109,
    "c": 0.18167,
    "h": 268.9
  },
  "luminance": 0.13298
}

Semantic roles & 50–950 ramp

primary

#405CD0

secondary

#D5C997

accent

#C544E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #405CD0

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

Preview Lab → · Contrast checker → · Palette generator →