#405AB4#405AB4

#405AB4 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.146 H 268.5°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#405AB4
RGB	rgb(64, 90, 180)
HSL	hsl(227, 48%, 48%)
HSV	hsv(227, 64%, 71%)
CMYK	cmyk(64.4%, 50%, 0%, 29.4%)
CIE-LAB	lab(40.73, 19.57, -50.82)
CIE-LCH	lch(40.73, 54.46, 291.06°)
OKLab	oklab(49.62% -0.0037 -0.1456)
OKLCH	oklch(49.62% 0.146 268.5)
XYZ	xyz(14.0059, 11.6963, 44.6907)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405AB4 #B49A40

analogous

#4094B4 #405AB4 #6040B4

triadic

#405AB4 #B4405A #5AB440

tetradic

#405AB4 #B44094 #B49A40 #40B460

square

#405AB4 #B44094 #B49A40 #40B460

split-complementary

#405AB4 #B46040 #94B440

monochromatic

#202D5A #304387 #405AB4 #687EC9 #95A4D9

Accessibility & contrast

On white

6.29

#405AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#405AB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405AB4

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405AB4	#FFFFFF	#000000	##FFFFFF
##405AB4	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2966B7

Deuteranopia (green-blind)

#095BB2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #405ab4;
/* rgb */ color: rgb(64, 90, 180);
/* oklch */ color: oklch(49.6% 0.146 268.5);

Tailwind

colors: {
  custom: {
    50: '#8188cb',
    500: '#405ab4',
    950: '#000000',
  },
}

SCSS

$custom: #405ab4;
$custom-light: #8188cb;
$custom-dark: #000000;

JSON

{
  "hex": "#405ab4",
  "rgb": {
    "r": 64,
    "g": 90,
    "b": 180
  },
  "hsl": {
    "h": 226.552,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49621,
    "c": 0.14567,
    "h": 268.5
  },
  "luminance": 0.11698
}

Semantic roles & 50–950 ramp

primary

#405AB4

secondary

#C5B88B

accent

#B951D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405AB4

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

Preview Lab → · Contrast checker → · Palette generator →