#405DC3#405DC3

#405DC3 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.3% C 0.163 H 268.2°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#405DC3
RGB	rgb(64, 93, 195)
HSL	hsl(227, 52%, 51%)
HSV	hsv(227, 67%, 76%)
CMYK	cmyk(67.2%, 52.3%, 0%, 23.5%)
CIE-LAB	lab(42.55, 23.00, -56.64)
CIE-LCH	lch(42.55, 61.14, 292.10°)
OKLab	oklab(51.32% -0.005 -0.1627)
OKLCH	oklch(51.32% 0.163 268.2)
XYZ	xyz(15.8756, 12.8573, 53.2642)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DC3 #C3A640

analogous

#409EC3 #405DC3 #6540C3

triadic

#405DC3 #C3405D #5DC340

tetradic

#405DC3 #C3409E #C3A640 #40C365

square

#405DC3 #C3409E #C3A640 #40C365

split-complementary

#405DC3 #C36540 #9EC340

monochromatic

#213068 #2F4697 #405DC3 #6F84D2 #9DACE0

Accessibility & contrast

On white

5.88

#405DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#405DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DC3

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DC3	#FFFFFF	#000000	##FFFFFF
##405DC3	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)

#1B6BC7

Deuteranopia (green-blind)

#005FC1

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #405dc3;
/* rgb */ color: rgb(64, 93, 195);
/* oklch */ color: oklch(51.3% 0.163 268.2);

Tailwind

colors: {
  custom: {
    50: '#838ad6',
    500: '#405dc3',
    950: '#000000',
  },
}

SCSS

$custom: #405dc3;
$custom-light: #838ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#405dc3",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 195
  },
  "hsl": {
    "h": 226.718,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51321,
    "c": 0.16278,
    "h": 268.2
  },
  "luminance": 0.12859
}

Semantic roles & 50–950 ramp

primary

#405DC3

secondary

#CCC092

accent

#BC4CDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #405DC3

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

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