#404583#404583

#404583 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.8% C 0.102 H 277.5°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#404583
RGB	rgb(64, 69, 131)
HSL	hsl(236, 34%, 38%)
HSV	hsv(236, 51%, 51%)
CMYK	cmyk(51.1%, 47.3%, 0%, 48.6%)
CIE-LAB	lab(31.77, 16.25, -35.66)
CIE-LCH	lch(31.77, 39.19, 294.50°)
OKLab	oklab(41.81% 0.0134 -0.1013)
OKLCH	oklch(41.81% 0.102 277.5)
XYZ	xyz(8.3379, 6.9844, 22.3771)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404583 #837E40

analogous

#406683 #404583 #5C4083

triadic

#404583 #834045 #458340

tetradic

#404583 #834066 #837E40 #40835C

square

#404583 #834066 #837E40 #40835C

split-complementary

#404583 #835C40 #668340

monochromatic

#181A31 #2C2F5A #404583 #545BAC #7E83C0

Accessibility & contrast

On white

8.76

#404583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#404583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404583

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404583	#FFFFFF	#000000	##FFFFFF
##404583	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4D85

Deuteranopia (green-blind)

#254882

Tritanopia (blue-blind)

#26525D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #404583;
/* rgb */ color: rgb(64, 69, 131);
/* oklch */ color: oklch(41.8% 0.102 277.5);

Tailwind

colors: {
  custom: {
    50: '#7978a7',
    500: '#404583',
    950: '#000000',
  },
}

SCSS

$custom: #404583;
$custom-light: #7978a7;
$custom-dark: #000000;

JSON

{
  "hex": "#404583",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 131
  },
  "hsl": {
    "h": 235.522,
    "s": 34.359,
    "l": 38.235
  },
  "oklch": {
    "l": 0.41806,
    "c": 0.10217,
    "h": 277.5
  },
  "luminance": 0.06985
}

Semantic roles & 50–950 ramp

primary

#404583

secondary

#AAA675

accent

#C25DCA

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #404583

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

Preview Lab → · Contrast checker → · Palette generator →