#405FCF#405FCF

#405FCF is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.6% C 0.177 H 268.1°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#405FCF
RGB	rgb(64, 95, 207)
HSL	hsl(227, 60%, 53%)
HSV	hsv(227, 69%, 81%)
CMYK	cmyk(69.1%, 54.1%, 0%, 18.8%)
CIE-LAB	lab(43.91, 26.02, -61.36)
CIE-LCH	lch(43.91, 66.65, 292.98°)
OKLab	oklab(52.62% -0.0059 -0.1765)
OKLCH	oklch(52.62% 0.177 268.1)
XYZ	xyz(17.4652, 13.7777, 60.7583)
Luminance	0.1378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FCF #CFB040

analogous

#40A6CF #405FCF #6840CF

triadic

#405FCF #CF405F #5FCF40

tetradic

#405FCF #CF40A6 #CFB040 #40CF68

square

#405FCF #CF40A6 #CFB040 #40CF68

split-complementary

#405FCF #CF6840 #A6CF40

monochromatic

#1E3177 #2A45A8 #405FCF #7188DB #A2B1E8

Accessibility & contrast

On white

5.59

#405FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#405FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FCF

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FCF	#FFFFFF	#000000	##FFFFFF
##405FCF	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#016FD3

Deuteranopia (green-blind)

#0062CD

Tritanopia (blue-blind)

#007A8E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #405fcf;
/* rgb */ color: rgb(64, 95, 207);
/* oklch */ color: oklch(52.6% 0.177 268.1);

Tailwind

colors: {
  custom: {
    50: '#868cde',
    500: '#405fcf',
    950: '#000000',
  },
}

SCSS

$custom: #405fcf;
$custom-light: #868cde;
$custom-dark: #000000;

JSON

{
  "hex": "#405fcf",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 207
  },
  "hsl": {
    "h": 226.993,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.52617,
    "c": 0.17664,
    "h": 268.1
  },
  "luminance": 0.13779
}

Semantic roles & 50–950 ramp

primary

#405FCF

secondary

#D4C797

accent

#C145E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #405FCF

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

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