#404E73#404E73

#404E73 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 42.9% C 0.064 H 267.8°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#404E73
RGB	rgb(64, 78, 115)
HSL	hsl(224, 28%, 35%)
HSV	hsv(224, 44%, 45%)
CMYK	cmyk(44.3%, 32.2%, 0%, 54.9%)
CIE-LAB	lab(33.51, 5.09, -22.96)
CIE-LCH	lch(33.51, 23.51, 282.50°)
OKLab	oklab(42.86% -0.0025 -0.0642)
OKLCH	oklch(42.86% 0.064 267.8)
XYZ	xyz(7.9323, 7.7762, 17.2993)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E73 #736540

analogous

#406873 #404E73 #4B4073

triadic

#404E73 #73404E #4E7340

tetradic

#404E73 #734068 #736540 #40734B

square

#404E73 #734068 #736540 #40734B

split-complementary

#404E73 #734B40 #687340

monochromatic

#141924 #2A334C #404E73 #56699A #7989B4

Accessibility & contrast

On white

8.22

#404E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#404E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E73

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E73	#FFFFFF	#000000	##FFFFFF
##404E73	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415175

Deuteranopia (green-blind)

#3C4D72

Tritanopia (blue-blind)

#2F565B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #404e73;
/* rgb */ color: rgb(64, 78, 115);
/* oklch */ color: oklch(42.9% 0.064 267.8);

Tailwind

colors: {
  custom: {
    50: '#777f9b',
    500: '#404e73',
    950: '#000000',
  },
}

SCSS

$custom: #404e73;
$custom-light: #777f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#404e73",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 115
  },
  "hsl": {
    "h": 223.529,
    "s": 28.492,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42856,
    "c": 0.06427,
    "h": 267.8
  },
  "luminance": 0.07777
}

Semantic roles & 50–950 ramp

primary

#404E73

secondary

#9F9270

accent

#AA63C5

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0E

muted

#7B7C7E

Preview Lab

Preview with #404E73

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

Preview Lab → · Contrast checker → · Palette generator →