#405AB3#405AB3

#405AB3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.144 H 268.5°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#405AB3
RGB	rgb(64, 90, 179)
HSL	hsl(226, 47%, 48%)
HSV	hsv(226, 64%, 70%)
CMYK	cmyk(64.2%, 49.7%, 0%, 29.8%)
CIE-LAB	lab(40.66, 19.22, -50.34)
CIE-LCH	lch(40.66, 53.89, 290.89°)
OKLab	oklab(49.55% -0.0038 -0.1442)
OKLCH	oklch(49.55% 0.144 268.5)
XYZ	xyz(13.9044, 11.6557, 44.1561)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405AB3 #B39940

analogous

#4093B3 #405AB3 #6040B3

triadic

#405AB3 #B3405A #5AB340

tetradic

#405AB3 #B34093 #B39940 #40B360

square

#405AB3 #B34093 #B39940 #40B360

split-complementary

#405AB3 #B36040 #93B340

monochromatic

#202D59 #304386 #405AB3 #677DC9 #94A4D9

Accessibility & contrast

On white

6.30

#405AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#405AB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405AB3

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405AB3	#FFFFFF	#000000	##FFFFFF
##405AB3	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A65B6

Deuteranopia (green-blind)

#0D5BB1

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #405ab3;
/* rgb */ color: rgb(64, 90, 179);
/* oklch */ color: oklch(49.5% 0.144 268.5);

Tailwind

colors: {
  custom: {
    50: '#8088ca',
    500: '#405ab3',
    950: '#000000',
  },
}

SCSS

$custom: #405ab3;
$custom-light: #8088ca;
$custom-dark: #000000;

JSON

{
  "hex": "#405ab3",
  "rgb": {
    "r": 64,
    "g": 90,
    "b": 179
  },
  "hsl": {
    "h": 226.435,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4955,
    "c": 0.14425,
    "h": 268.5
  },
  "luminance": 0.11657
}

Semantic roles & 50–950 ramp

primary

#405AB3

secondary

#C4B78A

accent

#B951D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405AB3

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

Preview Lab → · Contrast checker → · Palette generator →