#39404B#39404B

#39404B is a dark, muted blue. Relative luminance 0.050; OKLCH L 36.9% C 0.021 H 259.4°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#39404B
RGB	rgb(57, 64, 75)
HSL	hsl(217, 14%, 26%)
HSV	hsv(217, 24%, 29%)
CMYK	cmyk(24%, 14.7%, 0%, 70.6%)
CIE-LAB	lab(26.86, -0.05, -7.63)
CIE-LCH	lch(26.86, 7.63, 269.59°)
OKLab	oklab(36.94% -0.0039 -0.0208)
OKLCH	oklch(36.94% 0.021 259.4)
XYZ	xyz(4.7904, 5.0445, 7.3765)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39404B #4B4439

analogous

#39494B #39404B #3B394B

triadic

#39404B #4B3940 #404B39

tetradic

#39404B #4B3949 #4B4439 #394B3B

square

#39404B #4B3949 #4B4439 #394B3B

split-complementary

#39404B #4B3B39 #494B39

monochromatic

#0D0F11 #1F2228 #39404B #535E6E #6E7B91

Accessibility & contrast

On white

10.45

#39404B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#39404B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39404B

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39404B	#FFFFFF	#000000	##FFFFFF
##39404B	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C404C

Deuteranopia (green-blind)

#3B3F4B

Tritanopia (blue-blind)

#344244

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #39404b;
/* rgb */ color: rgb(57, 64, 75);
/* oklch */ color: oklch(36.9% 0.021 259.4);

Tailwind

colors: {
  custom: {
    50: '#6f747d',
    500: '#39404b',
    950: '#000000',
  },
}

SCSS

$custom: #39404b;
$custom-light: #6f747d;
$custom-dark: #000000;

JSON

{
  "hex": "#39404b",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 216.667,
    "s": 13.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.36941,
    "c": 0.02114,
    "h": 259.4
  },
  "luminance": 0.05045
}

Semantic roles & 50–950 ramp

primary

#39404B

secondary

#7B7265

accent

#9C71B6

background

#F6F7F7

surface

#ECEDEE

border

#C7C8C9

text

#070809

muted

#7A7B7B

Preview Lab

Preview with #39404B

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

Preview Lab → · Contrast checker → · Palette generator →