#405AB8#405AB8

#405AB8 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.151 H 268.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#405AB8
RGB	rgb(64, 90, 184)
HSL	hsl(227, 48%, 49%)
HSV	hsv(227, 65%, 72%)
CMYK	cmyk(65.2%, 51.1%, 0%, 27.8%)
CIE-LAB	lab(41.00, 21.00, -52.74)
CIE-LCH	lch(41.00, 56.77, 291.71°)
OKLab	oklab(49.91% -0.0033 -0.1513)
OKLCH	oklch(49.91% 0.151 268.8)
XYZ	xyz(14.4193, 11.8617, 46.8678)
Luminance	0.1186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405AB8 #B89E40

analogous

#4096B8 #405AB8 #6240B8

triadic

#405AB8 #B8405A #5AB840

tetradic

#405AB8 #B84096 #B89E40 #40B862

square

#405AB8 #B84096 #B89E40 #40B862

split-complementary

#405AB8 #B86240 #96B840

monochromatic

#202E5D #30448B #405AB8 #6A7FCB #97A6DB

Accessibility & contrast

On white

6.23

#405AB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#405AB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405AB8

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405AB8	#FFFFFF	#000000	##FFFFFF
##405AB8	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2466BB

Deuteranopia (green-blind)

#005CB6

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405ab8;
/* rgb */ color: rgb(64, 90, 184);
/* oklch */ color: oklch(49.9% 0.151 268.8);

Tailwind

colors: {
  custom: {
    50: '#8188ce',
    500: '#405ab8',
    950: '#000000',
  },
}

SCSS

$custom: #405ab8;
$custom-light: #8188ce;
$custom-dark: #000000;

JSON

{
  "hex": "#405ab8",
  "rgb": {
    "r": 64,
    "g": 90,
    "b": 184
  },
  "hsl": {
    "h": 227,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.49908,
    "c": 0.1513,
    "h": 268.8
  },
  "luminance": 0.11863
}

Semantic roles & 50–950 ramp

primary

#405AB8

secondary

#C7BA8D

accent

#BA50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405AB8

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

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