#040C0B

Closest named color: Almost Black (#070D0D). oklch(14.4% 0.015 187.2), rgb(4, 12, 11).

White text reads best on this color (19.76:1).

About this color

#040C0B is a very dark close to neutral grey. In OKLCH its lightness is 14%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.009 away. White text reads best on it, at 19.76:1.

Hue family	Neutrals
Lightness	very dark (14%)
Chroma	close to neutral grey (0.015)
Temperature	neutral
Nearest name	Almost Black (#070D0D)
Black text	1.06:1
White text	19.76:1

Values

HEX	#040C0B
RGB	rgb(4, 12, 11)
HSL	hsl(173, 50%, 3%)
OKLCH	oklch(14.4% 0.015 187.2)

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 #040C0B	19.76:1	AAA	Lc -107.7	Preferred for body text
Black text on #040C0B	1.06:1	Fails	Lc 0.0	Not readable
#040C0B text on white	19.76:1	AAA	Lc 105.8	Preferred for body text
#040C0B text on black	1.06:1	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

#F4F6F6

oklch(97.2% 0.002 197.1)
Step 100
100

#E6EBEA

oklch(93.6% 0.006 183)
Step 200
200

#D2DBDA

oklch(88.4% 0.01 189)
Step 300
300

#B5C4C2

oklch(80.8% 0.017 187.2)
Step 400
400

#8EA7A3

oklch(70.8% 0.028 184.8)
Step 500
500

#72918D

oklch(63.2% 0.035 186.6)
Step 600
600

#597B77

oklch(55.6% 0.039 187.1)
Step 700
700

#496864

oklch(49.2% 0.037 186.1)
Step 800
800

#3C5452

oklch(42.6% 0.029 189.7)
Step 900
900

#344644

oklch(37.8% 0.023 187.8)
Step 950
950 (this color)

#040C0B

oklch(14.4% 0.015 187.2)

Export this scale for Tailwind in the Tailwind colors tool

#040C0B 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)	#0B0B0B	0.016
Deuteranopia (no green cones)	#090A0B	0.014
Tritanopia (no blue cones)	#020C0C	0.005
Achromatopsia (no color)	#0A0A0A	0.015

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 #040C0B, closest first.

Similar named colors

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

Use #040C0B 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