#3A404F#3A404F

#3A404F is a dark, muted blue. Relative luminance 0.051; OKLCH L 37.2% C 0.027 H 267.9°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#3A404F
RGB	rgb(58, 64, 79)
HSL	hsl(223, 15%, 27%)
HSV	hsv(223, 27%, 31%)
CMYK	cmyk(26.6%, 19%, 0%, 69%)
CIE-LAB	lab(27.10, 1.42, -9.88)
CIE-LCH	lch(27.10, 9.98, 278.18°)
OKLab	oklab(37.21% -0.001 -0.027)
OKLCH	oklch(37.21% 0.027 267.9)
XYZ	xyz(4.9892, 5.1307, 8.1231)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A404F #4F493A

analogous

#3A4B4F #3A404F #3F3A4F

triadic

#3A404F #4F3A40 #404F3A

tetradic

#3A404F #4F3A4B #4F493A #3A4F3F

square

#3A404F #4F3A4B #4F493A #3A4F3F

split-complementary

#3A404F #4F3F3A #4B4F3A

monochromatic

#0D0E12 #20232C #3A404F #545D72 #6E7995

Accessibility & contrast

On white

10.36

#3A404F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3A404F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A404F

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A404F	#FFFFFF	#000000	##FFFFFF
##3A404F	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4150

Deuteranopia (green-blind)

#3A3F4F

Tritanopia (blue-blind)

#354345

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3a404f;
/* rgb */ color: rgb(58, 64, 79);
/* oklch */ color: oklch(37.2% 0.027 267.9);

Tailwind

colors: {
  custom: {
    50: '#707480',
    500: '#3a404f',
    950: '#000000',
  },
}

SCSS

$custom: #3a404f;
$custom-light: #707480;
$custom-dark: #000000;

JSON

{
  "hex": "#3a404f",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 79
  },
  "hsl": {
    "h": 222.857,
    "s": 15.328,
    "l": 26.863
  },
  "oklch": {
    "l": 0.37205,
    "c": 0.02704,
    "h": 267.9
  },
  "luminance": 0.05131
}

Semantic roles & 50–950 ramp

primary

#3A404F

secondary

#7F7866

accent

#A370B8

background

#F6F7F7

surface

#ECEDEE

border

#C7C8C9

text

#07080A

muted

#7A7B7C

Preview Lab

Preview with #3A404F

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

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