#39403B#39403B

#39403B is a dark, near-neutral grey. Relative luminance 0.049; OKLCH L 36.3% C 0.013 H 154.6°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#39403B
RGB	rgb(57, 64, 59)
HSL	hsl(137, 6%, 24%)
HSV	hsv(137, 11%, 25%)
CMYK	cmyk(10.9%, 0%, 7.8%, 74.9%)
CIE-LAB	lab(26.31, -4.07, 2.07)
CIE-LCH	lch(26.31, 4.57, 153.06°)
OKLab	oklab(36.32% -0.0114 0.0054)
OKLCH	oklch(36.32% 0.013 154.6)
XYZ	xyz(4.3100, 4.8524, 4.8464)
Luminance	0.0485 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39403B #40393E

analogous

#3A4039 #39403B #39403E

triadic

#39403B #3B3940 #403B39

tetradic

#39403B #393A40 #40393E #403E39

square

#39403B #393A40 #40393E #403E39

split-complementary

#39403B #3E3940 #40393A

monochromatic

#0E100F #1C201D #39403B #566059 #738177

Accessibility & contrast

On white

10.66

#39403B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#39403B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39403B

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39403B	#FFFFFF	#000000	##FFFFFF
##39403B	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403F3B

Deuteranopia (green-blind)

#3F3E3B

Tritanopia (blue-blind)

#38403E

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #39403b;
/* rgb */ color: rgb(57, 64, 59);
/* oklch */ color: oklch(36.3% 0.013 154.6);

Tailwind

colors: {
  custom: {
    50: '#6f7470',
    500: '#39403b',
    950: '#000000',
  },
}

SCSS

$custom: #39403b;
$custom-light: #6f7470;
$custom-dark: #000000;

JSON

{
  "hex": "#39403b",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 137.143,
    "s": 5.785,
    "l": 23.725
  },
  "oklch": {
    "l": 0.36324,
    "c": 0.0126,
    "h": 154.6
  },
  "luminance": 0.04852
}

Semantic roles & 50–950 ramp

primary

#39403B

secondary

#6F666C

accent

#799FAF

background

#F6F7F6

surface

#ECEDEC

border

#C7C8C7

text

#070807

muted

#7A7B7A

Preview Lab

Preview with #39403B

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

Preview Lab → · Contrast checker → · Palette generator →