#404183#404183

#404183 is a dark, moderate blue. Relative luminance 0.065; OKLCH L 41.0% C 0.108 H 279.8°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#404183
RGB	rgb(64, 65, 131)
HSL	hsl(239, 34%, 38%)
HSV	hsv(239, 51%, 51%)
CMYK	cmyk(51.1%, 50.4%, 0%, 48.6%)
CIE-LAB	lab(30.66, 18.91, -37.44)
CIE-LCH	lch(30.66, 41.94, 296.79°)
OKLab	oklab(40.97% 0.0185 -0.1065)
OKLCH	oklch(40.97% 0.108 279.8)
XYZ	xyz(8.1001, 6.5088, 22.2978)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404183 #838240

analogous

#406283 #404183 #604083

triadic

#404183 #834041 #418340

tetradic

#404183 #834062 #838240 #408360

square

#404183 #834062 #838240 #408360

split-complementary

#404183 #836040 #628340

monochromatic

#181831 #2C2D5A #404183 #5456AC #7E7FC0

Accessibility & contrast

On white

9.12

#404183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#404183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404183

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404183	#FFFFFF	#000000	##FFFFFF
##404183	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234B85

Deuteranopia (green-blind)

#1D4682

Tritanopia (blue-blind)

#264F5B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #404183;
/* rgb */ color: rgb(64, 65, 131);
/* oklch */ color: oklch(41.0% 0.108 279.8);

Tailwind

colors: {
  custom: {
    50: '#7a75a7',
    500: '#404183',
    950: '#000000',
  },
}

SCSS

$custom: #404183;
$custom-light: #7a75a7;
$custom-dark: #000000;

JSON

{
  "hex": "#404183",
  "rgb": {
    "r": 64,
    "g": 65,
    "b": 131
  },
  "hsl": {
    "h": 239.104,
    "s": 34.359,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40966,
    "c": 0.10812,
    "h": 279.8
  },
  "luminance": 0.06509
}

Semantic roles & 50–950 ramp

primary

#404183

secondary

#AAA975

accent

#C95DCA

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #404183

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

Preview Lab → · Contrast checker → · Palette generator →