#040B09

Closest named color: Almost Black (#070D0D). oklch(14% 0.014 177.5), rgb(4, 11, 9).

White text reads best on this color (19.86:1).

About this color

#040B09 is a very dark close to neutral grey. In OKLCH its lightness is 14%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.014 away. White text reads best on it, at 19.86:1.

Hue family	Neutrals
Lightness	very dark (14%)
Chroma	close to neutral grey (0.014)
Temperature	neutral
Nearest name	Almost Black (#070D0D)
Black text	1.05:1
White text	19.86:1

Values

HEX	#040B09
RGB	rgb(4, 11, 9)
HSL	hsl(163, 47%, 3%)
OKLCH	oklch(14% 0.014 177.5)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

Pair	WCAG 2	Result	APCA	APCA guidance
White text on #040B09	19.86:1	AAA	Lc -107.7	Preferred for body text
Black text on #040B09	1.05:1	Fails	Lc 0.0	Not readable
#040B09 text on white	19.86:1	AAA	Lc 105.8	Preferred for body text
#040B09 text on black	1.05:1	Fails	Lc 0.0	Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.

Step 50
50

#F4F6F5

oklch(97.1% 0.002 165.1)
Step 100
100

#E7EBEA

oklch(93.7% 0.004 179.7)
Step 200
200

#D3DBD9

oklch(88.5% 0.009 179.6)
Step 300
300

#B6C4C0

oklch(80.8% 0.016 177)
Step 400
400

#90A6A0

oklch(70.6% 0.026 177.3)
Step 500
500

#749189

oklch(63.2% 0.035 176.5)
Step 600
600

#5C7B73

oklch(55.6% 0.038 177.2)
Step 700
700

#4C6760

oklch(49% 0.034 177.1)
Step 800
800

#3E544F

oklch(42.6% 0.028 179.4)
Step 900
900

#354641

oklch(37.8% 0.023 175.1)
Step 950
950 (this color)

#040B09

oklch(14% 0.014 177.5)

Export this scale for Tailwind in the Tailwind colors tool

#040B09 with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

Vision	Seen as	Shift (ΔE)
Protanopia (no red cones)	#0A0A09	0.014
Deuteranopia (no green cones)	#090909	0.014
Tritanopia (no blue cones)	#030B0A	0.003
Achromatopsia (no color)	#090909	0.014

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #040B09, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #040B09 in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.

Build a color system from this color Generate a palette