#150D18

Closest named color: Almost Black (#070D0D). oklch(17.5% 0.025 316.6), rgb(21, 13, 24).

Aa

White text reads best on this color (19.04:1).

About this color

#150D18 is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.039 away. White text reads best on it, at 19.04:1.

Hue familyNeutrals
Lightnessvery dark (18%)
Chromaclose to neutral grey (0.025)
Temperatureneutral
Nearest nameAlmost Black (#070D0D)
Black text1.10:1
White text19.04:1

Values

HEX#150D18
RGBrgb(21, 13, 24)
HSLhsl(284, 30%, 7%)
OKLCHoklch(17.5% 0.025 316.6)

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 #150D18 19.04:1 AAA Lc -107.4 Preferred for body text
Black text on #150D18 1.10:1 Fails Lc 0.0 Not readable
#150D18 text on white 19.04:1 AAA Lc 105.4 Preferred for body text
#150D18 text on black 1.10:1 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

    #F6F5F7

    oklch(97.1% 0.003 308.4)

  2. Step 100

    100

    #ECE8EE

    oklch(93.6% 0.009 314.8)

  3. Step 200

    200

    #DED6E1

    oklch(88.6% 0.017 316.9)

  4. Step 300

    300

    #C9BBCE

    oklch(80.9% 0.03 317.2)

  5. Step 400

    400

    #AD98B5

    oklch(70.8% 0.048 316.7)

  6. Step 500

    500

    #997EA3

    oklch(63.1% 0.063 316.8)

  7. Step 600

    600

    #83678E

    oklch(55.6% 0.068 316.3)

  8. Step 700

    700

    #6F5678

    oklch(49.1% 0.061 317)

  9. Step 800

    800

    #5A4662

    oklch(42.6% 0.052 316.2)

  10. Step 900

    900

    #4A3B50

    oklch(37.7% 0.04 316.2)

  11. Step 950

    950 (this color)

    #150D18

    oklch(17.5% 0.025 316.6)

Export this scale for Tailwind in the Tailwind colors tool

#150D18 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)#0B0F180.021
Deuteranopia (no green cones)#0D10180.019
Tritanopia (no blue cones)#150E110.016
Achromatopsia (no color)#1010100.025

Harmonies

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

Complementary

The opposite hue (180°).

  • #150D18

    #150D18

    oklch(17.5% 0.025 316.6)

  • #0B1308

    #0B1308

    oklch(17.5% 0.025 137.2)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #150D18

    #150D18

    oklch(17.5% 0.025 316.6)

  • #100F1B

    #100F1B

    oklch(17.6% 0.025 287.4)

  • #190C13

    #190C13

    oklch(17.6% 0.026 346.6)

Open the analogous palette in the generator

Split complementary

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

  • #150D18

    #150D18

    oklch(17.5% 0.025 316.6)

  • #121105

    #121105

    oklch(17.5% 0.024 104.7)

  • #05140E

    #05140E

    oklch(17.5% 0.025 166.7)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #150D18

    #150D18

    oklch(17.5% 0.025 316.6)

  • #170F04

    #170F04

    oklch(17.5% 0.026 77.1)

  • #021414

    #021414

    oklch(17.5% 0.026 195)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #150D18

    #150D18

    oklch(17.5% 0.025 316.6)

  • #1A0D07

    #1A0D07

    oklch(17.6% 0.026 46.5)

  • #0B1308

    #0B1308

    oklch(17.5% 0.025 137.2)

  • #041319

    #041319

    oklch(17.6% 0.025 224.8)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #150D18, closest first.

Similar named colors

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

Use #150D18 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.