#405CCE#405CCE

#405CCE is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.0% C 0.179 H 268.9°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#405CCE
RGB	rgb(64, 92, 206)
HSL	hsl(228, 59%, 53%)
HSV	hsv(228, 69%, 81%)
CMYK	cmyk(68.9%, 55.3%, 0%, 19.2%)
CIE-LAB	lab(43.06, 27.57, -62.16)
CIE-LCH	lch(43.06, 68.00, 293.92°)
OKLab	oklab(51.95% -0.0034 -0.1789)
OKLCH	oklch(51.95% 0.179 268.9)
XYZ	xyz(17.0783, 13.1988, 60.0281)
Luminance	0.1320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CCE #CEB240

analogous

#40A3CE #405CCE #6B40CE

triadic

#405CCE #CE405C #5CCE40

tetradic

#405CCE #CE40A3 #CEB240 #40CE6B

square

#405CCE #CE40A3 #CEB240 #40CE6B

split-complementary

#405CCE #CE6B40 #A3CE40

monochromatic

#1E2F75 #2B43A6 #405CCE #7186DA #A1AFE7

Accessibility & contrast

On white

5.77

#405CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#405CCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CCE

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CCE	#FFFFFF	#000000	##FFFFFF
##405CCE	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD2

Deuteranopia (green-blind)

#005FCC

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #405cce;
/* rgb */ color: rgb(64, 92, 206);
/* oklch */ color: oklch(52.0% 0.179 268.9);

Tailwind

colors: {
  custom: {
    50: '#8689de',
    500: '#405cce',
    950: '#000000',
  },
}

SCSS

$custom: #405cce;
$custom-light: #8689de;
$custom-dark: #000000;

JSON

{
  "hex": "#405cce",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 206
  },
  "hsl": {
    "h": 228.169,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.51954,
    "c": 0.17898,
    "h": 268.9
  },
  "luminance": 0.13201
}

Semantic roles & 50–950 ramp

primary

#405CCE

secondary

#D4C796

accent

#C345E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405CCE

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

Preview Lab → · Contrast checker → · Palette generator →