#405DAB#405DAB

#405DAB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.6% C 0.129 H 266.4°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#405DAB
RGB	rgb(64, 93, 171)
HSL	hsl(224, 46%, 46%)
HSV	hsv(224, 63%, 67%)
CMYK	cmyk(62.6%, 45.6%, 0%, 32.9%)
CIE-LAB	lab(40.99, 14.44, -45.11)
CIE-LCH	lch(40.99, 47.36, 287.75°)
OKLab	oklab(49.64% -0.008 -0.1288)
OKLCH	oklch(49.64% 0.129 266.4)
XYZ	xyz(13.3769, 11.8578, 40.1040)
Luminance	0.1186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DAB #AB8E40

analogous

#4092AB #405DAB #5840AB

triadic

#405DAB #AB405D #5DAB40

tetradic

#405DAB #AB4092 #AB8E40 #40AB58

square

#405DAB #AB4092 #AB8E40 #40AB58

split-complementary

#405DAB #AB5840 #92AB40

monochromatic

#1F2D52 #2F457E #405DAB #637EC5 #90A3D5

Accessibility & contrast

On white

6.23

#405DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#405DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DAB

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DAB	#FFFFFF	#000000	##FFFFFF
##405DAB	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)

#3866AE

Deuteranopia (green-blind)

#275CA9

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405dab;
/* rgb */ color: rgb(64, 93, 171);
/* oklch */ color: oklch(49.6% 0.129 266.4);

Tailwind

colors: {
  custom: {
    50: '#7f8ac4',
    500: '#405dab',
    950: '#000000',
  },
}

SCSS

$custom: #405dab;
$custom-light: #7f8ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#405dab",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 171
  },
  "hsl": {
    "h": 223.738,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.49635,
    "c": 0.12901,
    "h": 266.4
  },
  "luminance": 0.11859
}

Semantic roles & 50–950 ramp

primary

#405DAB

secondary

#C1B186

accent

#B253D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405DAB

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

Preview Lab → · Contrast checker → · Palette generator →