#404378#404378

#404378 is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.7% C 0.088 H 279.3°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#404378
RGB	rgb(64, 67, 120)
HSL	hsl(237, 30%, 36%)
HSV	hsv(237, 47%, 47%)
CMYK	cmyk(46.7%, 44.2%, 0%, 52.9%)
CIE-LAB	lab(30.54, 13.94, -30.76)
CIE-LCH	lch(30.54, 33.77, 294.38°)
OKLab	oklab(40.66% 0.0142 -0.0869)
OKLCH	oklch(40.66% 0.088 279.3)
XYZ	xyz(7.5107, 6.4600, 18.6168)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404378 #787540

analogous

#405F78 #404378 #594078

triadic

#404378 #784043 #437840

tetradic

#404378 #78405F #787540 #407859

square

#404378 #78405F #787540 #407859

split-complementary

#404378 #785940 #5F7840

monochromatic

#151628 #2B2D50 #404378 #5559A0 #7A7EB8

Accessibility & contrast

On white

9.16

#404378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#404378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404378

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404378	#FFFFFF	#000000	##FFFFFF
##404378	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4A7A

Deuteranopia (green-blind)

#2B4677

Tritanopia (blue-blind)

#2D4E57

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #404378;
/* rgb */ color: rgb(64, 67, 120);
/* oklch */ color: oklch(40.7% 0.088 279.3);

Tailwind

colors: {
  custom: {
    50: '#78779f',
    500: '#404378',
    950: '#000000',
  },
}

SCSS

$custom: #404378;
$custom-light: #78779f;
$custom-dark: #000000;

JSON

{
  "hex": "#404378",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 120
  },
  "hsl": {
    "h": 236.786,
    "s": 30.435,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40658,
    "c": 0.08809,
    "h": 279.3
  },
  "luminance": 0.0646
}

Semantic roles & 50–950 ramp

primary

#404378

secondary

#A3A071

accent

#C161C7

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #404378

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

Preview Lab → · Contrast checker → · Palette generator →