#39404C#39404C

#39404C is a dark, muted blue. Relative luminance 0.051; OKLCH L 37.0% C 0.023 H 261.2°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#39404C
RGB	rgb(57, 64, 76)
HSL	hsl(218, 14%, 26%)
HSV	hsv(218, 25%, 30%)
CMYK	cmyk(25%, 15.8%, 0%, 70.2%)
CIE-LAB	lab(26.90, 0.22, -8.23)
CIE-LCH	lch(26.90, 8.23, 271.53°)
OKLab	oklab(36.99% -0.0035 -0.0224)
OKLCH	oklch(36.99% 0.023 261.2)
XYZ	xyz(4.8249, 5.0583, 7.5582)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39404C #4C4539

analogous

#39494C #39404C #3B394C

triadic

#39404C #4C3940 #404C39

tetradic

#39404C #4C3949 #4C4539 #394C3B

square

#39404C #4C3949 #4C4539 #394C3B

split-complementary

#39404C #4C3B39 #494C39

monochromatic

#0D0F11 #1F2329 #39404C #535D6F #6E7B92

Accessibility & contrast

On white

10.44

#39404C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#39404C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39404C

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39404C	#FFFFFF	#000000	##FFFFFF
##39404C	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C414D

Deuteranopia (green-blind)

#3A3F4C

Tritanopia (blue-blind)

#344244

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #39404c;
/* rgb */ color: rgb(57, 64, 76);
/* oklch */ color: oklch(37.0% 0.023 261.2);

Tailwind

colors: {
  custom: {
    50: '#6f747e',
    500: '#39404c',
    950: '#000000',
  },
}

SCSS

$custom: #39404c;
$custom-light: #6f747e;
$custom-dark: #000000;

JSON

{
  "hex": "#39404c",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 76
  },
  "hsl": {
    "h": 217.895,
    "s": 14.286,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36985,
    "c": 0.02271,
    "h": 261.2
  },
  "luminance": 0.05058
}

Semantic roles & 50–950 ramp

primary

#39404C

secondary

#7C7365

accent

#9D71B7

background

#F6F7F7

surface

#ECEDEE

border

#C7C8C9

text

#070809

muted

#7A7B7B

Preview Lab

Preview with #39404C

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

Preview Lab → · Contrast checker → · Palette generator →