#404DB5#404DB5

#404DB5 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.164 H 273.0°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#404DB5
RGB	rgb(64, 77, 181)
HSL	hsl(233, 48%, 48%)
HSV	hsv(233, 65%, 71%)
CMYK	cmyk(64.6%, 57.5%, 0%, 29%)
CIE-LAB	lab(37.36, 28.32, -56.86)
CIE-LCH	lch(37.36, 63.52, 296.47°)
OKLab	oklab(47.11% 0.0086 -0.1635)
OKLCH	oklch(47.11% 0.164 273)
XYZ	xyz(13.1059, 9.7328, 44.8951)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DB5 #B5A840

analogous

#4088B5 #404DB5 #6D40B5

triadic

#404DB5 #B5404D #4DB540

tetradic

#404DB5 #B54088 #B5A840 #40B56D

square

#404DB5 #B54088 #B5A840 #40B56D

split-complementary

#404DB5 #B56D40 #88B540

monochromatic

#20275B #303A88 #404DB5 #6873CA #969DDA

Accessibility & contrast

On white

7.13

#404DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#404DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404DB5

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DB5	#FFFFFF	#000000	##FFFFFF
##404DB5	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB9

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404db5;
/* rgb */ color: rgb(64, 77, 181);
/* oklch */ color: oklch(47.1% 0.164 273.0);

Tailwind

colors: {
  custom: {
    50: '#827ecc',
    500: '#404db5',
    950: '#000000',
  },
}

SCSS

$custom: #404db5;
$custom-light: #827ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#404db5",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 181
  },
  "hsl": {
    "h": 233.333,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47106,
    "c": 0.16378,
    "h": 273
  },
  "luminance": 0.09734
}

Semantic roles & 50–950 ramp

primary

#404DB5

secondary

#C5BF8B

accent

#C850D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #404DB5

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

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