#404B79#404B79

#404B79 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.5% C 0.078 H 272.5°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#404B79
RGB	rgb(64, 75, 121)
HSL	hsl(228, 31%, 36%)
HSV	hsv(228, 47%, 47%)
CMYK	cmyk(47.1%, 38%, 0%, 52.5%)
CIE-LAB	lab(32.92, 8.98, -27.62)
CIE-LCH	lch(32.92, 29.04, 288.00°)
OKLab	oklab(42.5% 0.0034 -0.0777)
OKLCH	oklch(42.5% 0.078 272.5)
XYZ	xyz(8.0805, 7.5022, 19.1077)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404B79 #796E40

analogous

#406879 #404B79 #524079

triadic

#404B79 #79404B #4B7940

tetradic

#404B79 #794068 #796E40 #407952

square

#404B79 #794068 #796E40 #407952

split-complementary

#404B79 #795240 #687940

monochromatic

#161929 #2B3251 #404B79 #5564A1 #7A87B9

Accessibility & contrast

On white

8.40

#404B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#404B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404B79

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404B79	#FFFFFF	#000000	##FFFFFF
##404B79	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A507B

Deuteranopia (green-blind)

#354B78

Tritanopia (blue-blind)

#2C545C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #404b79;
/* rgb */ color: rgb(64, 75, 121);
/* oklch */ color: oklch(42.5% 0.078 272.5);

Tailwind

colors: {
  custom: {
    50: '#787da0',
    500: '#404b79',
    950: '#000000',
  },
}

SCSS

$custom: #404b79;
$custom-light: #787da0;
$custom-dark: #000000;

JSON

{
  "hex": "#404b79",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 121
  },
  "hsl": {
    "h": 228.421,
    "s": 30.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42501,
    "c": 0.07782,
    "h": 272.5
  },
  "luminance": 0.07503
}

Semantic roles & 50–950 ramp

primary

#404B79

secondary

#A49A71

accent

#B361C7

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#09090E

muted

#7B7B7E

Preview Lab

Preview with #404B79

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

Preview Lab → · Contrast checker → · Palette generator →