#405CC0#405CC0

#405CC0 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.9% C 0.160 H 268.4°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#405CC0
RGB	rgb(64, 92, 192)
HSL	hsl(227, 50%, 50%)
HSV	hsv(227, 67%, 75%)
CMYK	cmyk(66.7%, 52.1%, 0%, 24.7%)
CIE-LAB	lab(42.08, 22.57, -55.67)
CIE-LCH	lch(42.08, 60.07, 292.07°)
OKLab	oklab(50.9% -0.0044 -0.1598)
OKLCH	oklch(50.9% 0.16 268.4)
XYZ	xyz(15.4527, 12.5486, 51.4667)
Luminance	0.1255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CC0 #C0A440

analogous

#409CC0 #405CC0 #6440C0

triadic

#405CC0 #C0405C #5CC040

tetradic

#405CC0 #C0409C #C0A440 #40C064

square

#405CC0 #C0409C #C0A440 #40C064

split-complementary

#405CC0 #C06440 #9CC040

monochromatic

#213064 #304692 #405CC0 #6E83CF #9CABDE

Accessibility & contrast

On white

5.98

#405CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#405CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CC0

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CC0	#FFFFFF	#000000	##FFFFFF
##405CC0	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D69C4

Deuteranopia (green-blind)

#005EBE

Tritanopia (blue-blind)

#007485

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405cc0;
/* rgb */ color: rgb(64, 92, 192);
/* oklch */ color: oklch(50.9% 0.160 268.4);

Tailwind

colors: {
  custom: {
    50: '#8389d4',
    500: '#405cc0',
    950: '#000000',
  },
}

SCSS

$custom: #405cc0;
$custom-light: #8389d4;
$custom-dark: #000000;

JSON

{
  "hex": "#405cc0",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 192
  },
  "hsl": {
    "h": 226.875,
    "s": 50.394,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50898,
    "c": 0.15989,
    "h": 268.4
  },
  "luminance": 0.1255
}

Semantic roles & 50–950 ramp

primary

#405CC0

secondary

#CBBE91

accent

#BB4EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #405CC0

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

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