#040B14

Closest named color: Almost Black (#070D0D). oklch(14.6% 0.024 250.7), rgb(4, 11, 20).

Aa

White text reads best on this color (19.75:1).

About this color

#040B14 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.021 away. White text reads best on it, at 19.75:1.

Hue familyNeutrals
Lightnessvery dark (15%)
Chromaclose to neutral grey (0.024)
Temperatureneutral
Nearest nameAlmost Black (#070D0D)
Black text1.06:1
White text19.75:1

Values

HEX#040B14
RGBrgb(4, 11, 20)
HSLhsl(214, 67%, 5%)
OKLCHoklch(14.6% 0.024 250.7)

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.

PairWCAG 2ResultAPCAAPCA guidance
White text on #040B14 19.75:1 AAA Lc -107.7 Preferred for body text
Black text on #040B14 1.06:1 Fails Lc 0.0 Not readable
#040B14 text on white 19.75:1 AAA Lc 105.8 Preferred for body text
#040B14 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.

  1. Step 50

    50

    #F4F6F8

    oklch(97.2% 0.003 247.9)

  2. Step 100

    100

    #E6EAEF

    oklch(93.5% 0.008 253.9)

  3. Step 200

    200

    #D2DAE3

    oklch(88.5% 0.015 251.2)

  4. Step 300

    300

    #B4C2D3

    oklch(80.9% 0.029 253.3)

  5. Step 400

    400

    #8CA3BC

    oklch(70.6% 0.045 250.6)

  6. Step 500

    500

    #708CAC

    oklch(63.1% 0.058 252.1)

  7. Step 600

    600

    #587697

    oklch(55.6% 0.062 251.3)

  8. Step 700

    700

    #476381

    oklch(49% 0.059 250.8)

  9. Step 800

    800

    #3B5169

    oklch(42.7% 0.048 251.1)

  10. Step 900

    900

    #334355

    oklch(37.7% 0.037 251.8)

  11. Step 950

    950 (this color)

    #040B14

    oklch(14.6% 0.024 250.7)

Export this scale for Tailwind in the Tailwind colors tool

#040B14 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.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#070B140.007
Deuteranopia (no green cones)#060A140.006
Tritanopia (no blue cones)#000D0E0.021
Achromatopsia (no color)#0A0A0A0.024

Harmonies

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

Complementary

The opposite hue (180°).

  • #040B14

    #040B14

    oklch(14.6% 0.024 250.7)

  • #110902

    #110902

    oklch(14.8% 0.024 71.9)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #040B14

    #040B14

    oklch(14.6% 0.024 250.7)

  • #010D11

    #010D11

    oklch(14.8% 0.024 216.6)

  • #090914

    #090914

    oklch(14.6% 0.024 283.1)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #040B14

    #040B14

    oklch(14.6% 0.024 250.7)

  • #130704

    #130704

    oklch(14.6% 0.024 40)

  • #0D0B02

    #0D0B02

    oklch(14.8% 0.023 100.5)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #040B14

    #040B14

    oklch(14.6% 0.024 250.7)

  • #130608

    #130608

    oklch(14.5% 0.025 9.1)

  • #070C03

    #070C03

    oklch(14.5% 0.024 129.4)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #040B14

    #040B14

    oklch(14.6% 0.024 250.7)

  • #11070D

    #11070D

    oklch(14.7% 0.022 342.8)

  • #110902

    #110902

    oklch(14.8% 0.024 71.9)

  • #030D07

    #030D07

    oklch(14.5% 0.023 159.6)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #040B14, closest first.

Similar named colors

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

Use #040B14 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.