#405ECB#405ECB

#405ECB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.1% C 0.172 H 268.2°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#405ECB
RGB	rgb(64, 94, 203)
HSL	hsl(227, 57%, 52%)
HSV	hsv(227, 68%, 80%)
CMYK	cmyk(68.5%, 53.7%, 0%, 20.4%)
CIE-LAB	lab(43.37, 25.22, -59.94)
CIE-LCH	lch(43.37, 65.03, 292.82°)
OKLab	oklab(52.12% -0.0053 -0.1724)
OKLCH	oklch(52.12% 0.172 268.2)
XYZ	xyz(16.8928, 13.4055, 58.1856)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405ECB #CBAD40

analogous

#40A4CB #405ECB #6740CB

triadic

#405ECB #CB405E #5ECB40

tetradic

#405ECB #CB40A4 #CBAD40 #40CB67

square

#405ECB #CB40A4 #CBAD40 #40CB67

split-complementary

#405ECB #CB6740 #A4CB40

monochromatic

#1F3172 #2C45A2 #405ECB #7087D8 #A0AFE5

Accessibility & contrast

On white

5.70

#405ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#405ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405ECB

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405ECB	#FFFFFF	#000000	##FFFFFF
##405ECB	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B6DCF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#00788B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #405ecb;
/* rgb */ color: rgb(64, 94, 203);
/* oklch */ color: oklch(52.1% 0.172 268.2);

Tailwind

colors: {
  custom: {
    50: '#858bdc',
    500: '#405ecb',
    950: '#000000',
  },
}

SCSS

$custom: #405ecb;
$custom-light: #858bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#405ecb",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 203
  },
  "hsl": {
    "h": 227.05,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.52117,
    "c": 0.17246,
    "h": 268.2
  },
  "luminance": 0.13407
}

Semantic roles & 50–950 ramp

primary

#405ECB

secondary

#D2C595

accent

#BF47E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405ECB

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

Preview Lab → · Contrast checker → · Palette generator →