#404E79#404E79

#404E79 is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.2% C 0.074 H 269.4°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#404E79
RGB	rgb(64, 78, 121)
HSL	hsl(225, 31%, 36%)
HSV	hsv(225, 47%, 47%)
CMYK	cmyk(47.1%, 35.5%, 0%, 52.5%)
CIE-LAB	lab(33.81, 7.02, -26.22)
CIE-LCH	lch(33.81, 27.15, 284.98°)
OKLab	oklab(43.19% -0.0007 -0.0737)
OKLCH	oklch(43.19% 0.074 269.4)
XYZ	xyz(8.2888, 7.9188, 19.1772)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E79 #796B40

analogous

#406B79 #404E79 #4F4079

triadic

#404E79 #79404E #4E7940

tetradic

#404E79 #79406B #796B40 #40794F

square

#404E79 #79406B #796B40 #40794F

split-complementary

#404E79 #794F40 #6B7940

monochromatic

#161A29 #2B3451 #404E79 #5568A1 #7A8AB9

Accessibility & contrast

On white

8.13

#404E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#404E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E79

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E79	#FFFFFF	#000000	##FFFFFF
##404E79	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E527B

Deuteranopia (green-blind)

#394D78

Tritanopia (blue-blind)

#2B575E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #404e79;
/* rgb */ color: rgb(64, 78, 121);
/* oklch */ color: oklch(43.2% 0.074 269.4);

Tailwind

colors: {
  custom: {
    50: '#787fa0',
    500: '#404e79',
    950: '#000000',
  },
}

SCSS

$custom: #404e79;
$custom-light: #787fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#404e79",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 121
  },
  "hsl": {
    "h": 225.263,
    "s": 30.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.43188,
    "c": 0.07368,
    "h": 269.4
  },
  "luminance": 0.07919
}

Semantic roles & 50–950 ramp

primary

#404E79

secondary

#A49771

accent

#AE61C7

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0E

muted

#7B7C7E

Preview Lab

Preview with #404E79

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

Preview Lab → · Contrast checker → · Palette generator →