#405BB3#405BB3

#405BB3 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.8% C 0.143 H 268.1°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#405BB3
RGB	rgb(64, 91, 179)
HSL	hsl(226, 47%, 48%)
HSV	hsv(226, 64%, 70%)
CMYK	cmyk(64.2%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(40.94, 18.57, -49.90)
CIE-LCH	lch(40.94, 53.24, 290.41°)
OKLab	oklab(49.76% -0.0048 -0.1429)
OKLCH	oklch(49.76% 0.143 268.1)
XYZ	xyz(13.9893, 11.8256, 44.1844)
Luminance	0.1183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB3 #B39840

analogous

#4094B3 #405BB3 #5E40B3

triadic

#405BB3 #B3405B #5BB340

tetradic

#405BB3 #B34094 #B39840 #40B35E

square

#405BB3 #B34094 #B39840 #40B35E

split-complementary

#405BB3 #B35E40 #94B340

monochromatic

#202D59 #304486 #405BB3 #677EC9 #94A5D9

Accessibility & contrast

On white

6.24

#405BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#405BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB3

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB3	#FFFFFF	#000000	##FFFFFF
##405BB3	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C66B6

Deuteranopia (green-blind)

#125CB1

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405bb3;
/* rgb */ color: rgb(64, 91, 179);
/* oklch */ color: oklch(49.8% 0.143 268.1);

Tailwind

colors: {
  custom: {
    50: '#8089ca',
    500: '#405bb3',
    950: '#000000',
  },
}

SCSS

$custom: #405bb3;
$custom-light: #8089ca;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb3",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 225.913,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49758,
    "c": 0.14297,
    "h": 268.1
  },
  "luminance": 0.11827
}

Semantic roles & 50–950 ramp

primary

#405BB3

secondary

#C4B78A

accent

#B751D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405BB3

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

Preview Lab → · Contrast checker → · Palette generator →